You follow the character ordering coffee, you follow the work meeting, you follow the couple’s argument. Then a teenager walks into the scene and suddenly it sounds like another language. “No cap, that’s lowkey fire.”
Slang is the part of English no course teaches properly, because it changes fast and depends heavily on age, region and social group. But some of it is now so widespread that it appears in almost every recent American series, and knowing those words saves a lot of confusion.
One warning before the list: understanding is one thing, using is another. Slang in the wrong place sounds odd even to native speakers. Use this list to understand scenes first. Using it will come naturally over time.
The ones everyone uses
These have become standard informal English, used by people of almost every age.
| Slang | Meaning | Example |
|---|---|---|
| dude | guy; friendly way to address someone | Dude, that was crazy. |
| awesome | great, amazing | That’s awesome! |
| cool | good; fine, okay with something | Is that cool with you? |
| chill | relax; relaxed | Let’s just chill tonight. |
| hang out | spend time together | Wanna hang out later? |
| my bad | my mistake, sorry | My bad, I forgot. |
| no way | I can’t believe it; absolutely not | No way! You got the job? |
| for real | seriously?, really | Are you for real right now? |
| freak out | panic, lose it | Don’t freak out. |
| bail | leave, cancel at the last minute | Sorry, I have to bail. |
Is that cool with you? is one of the most natural ways to ask permission informally. And my bad is the perfect light apology: short, casual, no drama.
The ones you hear from younger characters
These are more recent and more tied to teenagers and young adults. Many came from the internet.
| Slang | Meaning | Example |
|---|---|---|
| lowkey | kind of, quietly, a little | I lowkey love this song. |
| highkey | openly, very much | I highkey need a vacation. |
| no cap | no lie, seriously | That was the best pizza ever, no cap. |
| cap | a lie | That’s cap. |
| lit | exciting, great (often a party) | The party was lit. |
| fire | really good | This song is fire. |
| salty | bitter, annoyed | Why are you so salty? |
| ghost | disappear without explanation (from a relationship) | He ghosted me after two dates. |
| spill the tea | share the gossip | Okay, spill the tea. |
| slay | do something brilliantly | You slayed that presentation. |
| cringe | embarrassing to watch | That video was so cringe. |
| vibe | atmosphere, feeling | I like the vibe here. |
Ghost is now an everyday verb, to the point that it appears in newspaper headlines. And lowkey is one of the most useful to understand, because it changes the tone of the whole sentence: I lowkey hate him is much softer than I hate him.
Stronger words, or for specific situations
| Slang | Meaning | Example |
|---|---|---|
| busted | caught in the act | Busted! What are you doing here? |
| sketchy | suspicious, not trustworthy | This place looks sketchy. |
| legit | genuine, real, reliable | Is this website legit? |
| screw up | make a big mistake | I totally screwed up. |
| pissed | angry (US); drunk (UK) | She’s pissed at me. |
| broke | out of money | I’m broke until Friday. |
| wasted | very drunk | He got wasted at the party. |
| shady | dishonest, suspicious | That was a shady thing to do. |
Pissed is the perfect example of why it helps to know where a show is from. In an American drama, she’s pissed means she is angry. In a British comedy, it can mean she had far too much to drink. More on those differences in American vs British English.
Contractions that look like slang
Many learners think gonna, wanna and gotta are slang. They are actually the normal way going to, want to and got to are pronounced in fast speech, and you hear them even in formal spoken English. It is not informal vocabulary: it is just how the sounds come out.
Understanding that changes your listening. We explain it in how to improve your English listening.
How to really learn slang
Through context, never from lists. The same word changes meaning with the scene. Sick can mean “ill” or “amazing”. Fire can mean “flames”, “dismiss from a job” or “really good”. Only the scene tells you which.
Notice who is speaking. Slang says a lot about a character: age, region, group. When the dad in a sitcom tries to use his kid’s slang, it is almost always a joke, and the scene works precisely because the slang is out of place.
Do not trust literal translation. “Spill the tea” has nothing to do with tea. “No cap” has nothing to do with hats. Word-by-word translation is no help here.
That is why, when you look up slang, you need the explanation in the context of the sentence. Telidioma does that in Netflix and YouTube subtitles: tap the word and the explanation considers the whole sentence and the informal use, with an example. You can save the expression to your vocabulary along with the line it came from, which makes it much easier to remember.
Start with the vocabulary that comes before slang: the 35 most common phrasal verbs.