Trying to keep up with the way teenagers talk these days is nearly impossible, and if you can actually decode what they’re saying without a search engine, you’ve clearly spent far too much time in the deep end of the internet.
We’ve moved far beyond the days of calling things cool or wicked, so if you’re hitting 50 but still know exactly what a teenager means by the latest brain-rot coming off social media, you’ve basically become an honorary member of Gen Z. You might have the birth certificate of someone who remembers the 70s, but if these 15 slang words make perfect sense to you, it’s time to face the facts: you’re officially Britain’s youngest 50-year-old.
1. Rizz
Rizz is basically charm, but with a modern spin, and it usually means someone’s got a smooth way of talking that makes people like them fast. It’s most often used about flirting, but people also use it for anyone who’s weirdly good at winning strangers over, like the mate who gets free upgrades without even trying.
You might hear someone say he’s got mad rizz after watching a guy chat to a barista and walk away with a free pastry and a phone number. If someone says rizzless, it’s the opposite, meaning they’ve got all the flirting ability of a damp sock. It’s teasing, but it’s also brutally specific.
2. Delulu
Delulu is short for delusional, but people use it in a playful, self-aware way, like they know they’re being unrealistic, and they’re choosing it anyway. It’s what you say when your brain is doing that thing where it writes a whole romantic story after one nice text message.
You’ll hear it in lines like, “I’m being delulu, but I think they fancy me,” or “she’s gone full delulu and thinks she’ll be a millionaire by Friday.” It can be affectionate or mildly savage depending on the tone, which is half the fun. It’s the kind of word that lets you admit you’re being daft without fully losing face.
3. Ick
The ick is that sudden, unexplained turn-off where someone does one tiny thing and your attraction evaporates on the spot. It’s not always logical, which is why it’s so annoying because you can’t really argue with it once it hits. It could be a weird laugh, an overconfident dance move, or the way they run for a bus.
People say they got the ick when they’re trying to explain why they can’t look at someone the same way anymore, even if the person hasn’t actually done anything wrong. It’s often used in dating chat, but it shows up in friendships too, like when someone starts acting overly performative. The worst part is you usually feel a bit mean saying it, but it still feels true.
4. Beige flag
A beige flag is not a red flag, not a green flag, just a very neutral little fact about someone that’s mildly interesting but not life-changing. It’s the kind of thing you’d put in a conversation when you’ve run out of actual gossip, like he always orders the same meal, or she’s obsessed with stationery.
It’s funny because beige flags are often oddly specific, and people love collecting them like little personality receipts. Someone might say his beige flag is he narrates what he’s doing when he cooks, like he’s on a cooking show, and that’s it, that’s the whole thing. It’s not a warning sign, it’s just a detail that makes someone feel real.
5. Situationship
A situationship is that messy middle zone where you’re kind of seeing each other, kind of not, and nobody wants to say what it is out loud. It’s more than a casual thing, but not quite a relationship, and it usually comes with mixed signals, late-night texts, and a lot of pretending you’re fine with it.
People use the word because it perfectly captures that feeling of being stuck in a vibe rather than an actual defined thing. You’ll hear someone say they’re in a situationship, and you instantly know they’ve been overthinking, checking their phone too much, and trying to act chill while absolutely not being chill. It’s modern dating in one word, honestly.
6. NGL
NGL stands for not gonna lie, and it’s usually used to soften what you’re about to say, or to add a bit of honesty for dramatic effect. It can be used for anything, from a genuine confession to a very petty complaint, which is why it’s everywhere. It’s basically the text version of leaning in and dropping your voice.
You might see “ngl that was grim,” “ngl I kind of loved it,” or “ngl I’m tired of everyone.” It’s also used as a little disclaimer, like, “Don’t shoot the messenger, I’m just saying.” Half the time, people aren’t even saying anything that shocking, but it makes it sound spicier.
7. Fr fr
This means for real, for real, and it’s used when you want to show you’re being serious, even if the topic is stupid. It’s like doubling down in text form, and it can be supportive, dramatic, or sarcastic depending on the mood. People use it to agree hard, like yes, exactly, I mean it.
You’ll see it in things like “fr fr I can’t do another meeting,” or “she’s the best fr fr.” It’s one of those phrases that makes a message feel more casual and chatty, like you’re talking out loud rather than typing. If you hear someone say it in real life, you’ll either cringe a bit or weirdly respect the commitment.
8. NPC
NPC comes from gaming and means non-playable character, basically someone in the background with no real personality, just existing on autopilot. Online, people use it as a snarky way to describe someone who seems to follow trends without thinking, or who acts like they’ve got one scripted line and that’s it.
Someone might say that someone else is such an NPC because he repeats the same opinions he heard on TikTok, or because he walks around looking permanently unbothered and bland. It’s definitely not the nicest term, but it’s common enough that you’ll see it everywhere. It’s become shorthand for that vibe of being oddly empty and copy-paste.
9. Touch grass
Touch grass is what you say when someone’s too online and needs to step away from the screen for a bit. It’s a modern way of saying go outside, get some fresh air, remember real life exists. It’s usually said when someone’s getting overly angry, obsessive, or dramatic about something that genuinely doesn’t matter.
You might see it under a heated comment thread where someone’s writing essays about a celebrity breakup like it’s a war crime. Touch grass is basically a reality check, but with a little bite to it. It’s blunt, but it’s also sometimes the nicest thing someone could say, in a rude wrapper.
10. Yapping
Yapping means talking loads, usually in a way that feels pointless, repetitive, or just a bit much. It can be playful, like calling your mate a yapper because they can’t tell a story without ten side plots. It can also be dismissive, like when someone won’t stop arguing online, and you’re bored of it.
People might say he’s just yapping when someone’s acting confident, but not actually saying anything useful. It’s also used affectionately, like stop yapping and come here, which is honestly kind of sweet. Either way, it’s a word that perfectly captures the sound and the energy.
11. Peak
Peak is one of those words that can mean brilliant or terrible depending on context, but in a lot of modern UK slang, it’s used to mean that’s rough or that’s unfortunate. It’s the kind of response you give when something bad happens, and you don’t have the energy for a full emotional reaction, so you just summarise it.
Someone might say their phone died on the train, and you reply with “peak,” meaning “yeah, that’s unlucky.” It can also be used to describe something that’s maximum level, like “that’s peak comedy,” but you’ll usually know from the tone. It’s short, blunt, and very British in that resigned way.
12. Leng
Leng means attractive, usually in a strong way, like properly good-looking. It’s been around for a while in UK slang, especially in London and online, but plenty of people still don’t know it unless they’ve got younger mates or spend time on social media.
You’ll hear someone say that someone’s leng, and it’s basically the same as saying they’re a ten. It can also be used for things like food, like “this burger is leng,” which is both dramatic and kind of accurate. It’s one of those words that sounds silly until you hear it used naturally.
13. Peng
Peng is similar to leng, meaning attractive, and it’s been a staple in UK slang for years. It can describe a person, an outfit, or even something like a holiday photo where everything looks unreal. It’s usually said with confidence, like it’s a fact, not an opinion.
You might hear it when someone sees a really good-looking meal, a nice view, or someone walking past looking sharp. It’s one of those words that makes you sound instantly more street than you probably are, so it can feel risky to use if it’s not natural for you. Still, if you can explain it, you’re in the club.
14. Bare
Bare means a lot of something, and it’s used like “there’s bare people here,” meaning the place is packed. It’s common in UK slang, especially in certain areas and age groups, but it’s spread enough that you’ll hear it in all kinds of settings now.
People also use it in things like “I’ve got bare work to do” or “he’s got bare opinions,” meaning loads. It’s one of those words that slips into your speech without you noticing if you’re around it enough. If you hear yourself say bare unironically, you’re officially influenced.
15. Dead
This means something is so funny or so shocking that you’re basically finished, like you can’t cope. It’s not literal, it’s just a dramatic way of saying you’re laughing hard or completely stunned. People type it constantly, especially when they can’t be bothered writing a full reaction.
You’ll see messages like “I’m actually dead” after a ridiculous story or a savage comment. It can also be used seriously, but dead on its own is usually about humour. If you’ve ever laughed so hard you had to put your phone down, you already understand the vibe.
