Slang about attitude and plans: low-key, bet, YOLO and more
Short answer: Slang about attitude and plans shows how sure you are and whether you agree. “Low-key” means a little, “high-key” means very much, “bet” and “I'm down” mean okay, and “YOLO” means you only live once. It is very informal.
What do these expressions mean?
| Expression | Meaning | Example | How informal |
|---|---|---|---|
| Low-key | A little, or without making it obvious | I'm low-key hungry. | Informal |
| High-key | Very much, or without hiding it | I high-key love this song. | Informal |
| Bet | Okay; I agree | Meet at six? — Bet. | Informal |
| I'm down | I agree. I want to do it | Movie tonight? I'm down. | Informal |
| YOLO | You only live once; said to support a bold choice | I tried the spicy noodles. YOLO! | Very informal |
| Main character energy | Acting very confident, like the star of a story | He walked into the room with main character energy. | Informal |
| It's giving... | It looks or feels like something | That hat is giving beach day. | Informal |
| Rent-free | Something you keep thinking about | That joke is living rent-free in my head. | Informal |
| Loaded | Having a lot of money | They live in a huge house. They must be loaded. | Informal |
Is it safe to use?
These words are very informal. They are for friends and casual chat. “YOLO” is labelled very informal in the Teen Talk lessons, because it is often used to encourage bold or risky choices. Slang changes fast, so check how people use a word now.
When do you hear these words?
- To agree with a plan: “Bet.”, “I'm down.”
- To say how strongly you feel: “low-key excited”, “high-key obsessed”.
- To say that something looks or feels like something else: “It's giving beach day.”
- To describe a thought you cannot forget: “living rent-free in my head”.
Common mistakes with this slang
- “Low-key” means a little, or without showing it. “High-key” means very much, or without hiding it.
- “Bet” here means “okay, I agree”. It is not about betting money.
- “Rent-free” here is a joke about a thought that stays in your head. It does not mean a home.
- “Loaded” in slang means having a lot of money.
More slang
- English slang: what common slang words mean (all groups)
- Slang for saying something is great: lit, dope, fire, slay
- Slang about friends and feelings: what the words mean
- Slang about honesty: no cap, cap and sus
Questions
What does “low-key” mean?
It means a little, or without making it obvious. For example, “I'm low-key excited about the trip.”
What does “high-key” mean?
It means very much, or without hiding it. It is the opposite of “low-key”.
What does “bet” mean in slang?
It means “okay” or “I agree”. If a friend says “See you at six?” you can answer “Bet.”
What does “YOLO” mean?
It means “you only live once”. People say it to support a bold choice, so it can sound careless.
What does “main character energy” mean?
It means acting very confident, like the star of a story.
Part of the English slang guide in the 🗣️ Teen Talk tool.
Written for English learners by the English for Fun team. How we write our lessons · Last updated 2026-11-05.