8 English Slang Terms You Need to Know in 2025
Stay Relevant in Conversations with These Trending Expressions!
Hi Harfordian!
Language evolves quickly, especially on the internet. If you’re learning English or simply want to stay up to date with the latest slang, knowing what Gen Z and young millennials are saying in 2025 can help you sound more fluent and relatable.
Here are 8 popular English slang terms you should definitely learn this year:
1. No Cap
Definition: This phrase is used to emphasize that someone is being completely honest or serious.
Example:
“That movie was the best I’ve seen this year, no cap!”
2. Glow Broke
Definition: This describes someone who appears wealthy or stylish but is actually struggling financially.
Example:
“He’s got designer shoes but eats instant noodles every day. He’s totally glow broke.”
3. Vibe Check Failed
Definition: This expression is used when a situation or person feels awkward, uncomfortable, or out of sync.
Example:
“The party was weird… vibe check failed.”
4. Main Character Moment
Definition: This refers to a situation where someone feels like everything revolves around them—often in a positive and empowering way.
Example:
“When I walked in with that outfit? Total main character moment.”
5. Lowkey Flex
Definition: This is when someone brags or shows off, but in a subtle or indirect way.
Example:
“She just said she ‘casually travels to Europe every year’—lowkey flex.”
6. Deadass Rebooted
Definition: This slang emphasizes that a person is being extremely serious or truthful.
Example:
“You think I’m joking? I’m deadass rebooted.”
7. Slaps Different
Definition: This phrase is used to describe something (especially music or food) that feels particularly good or emotionally powerful in a certain moment.
Example:
“That song at 2 a.m.? It slaps different.”
8. Delulu Era
Definition: This term refers to a period when someone is being delightfully delusional—often in a hopeful or humorous way.
Example:
“I think he likes me back… yeah, I’m in my delulu era.”
Why Learn Slang?
Understanding slang helps you connect more naturally in real-life conversations, especially in informal or social media settings. It’s also a fun way to stay culturally updated.
Want to improve your English fluency with real conversations, not just grammar rules?
Join our interactive English-speaking program at Harford Institute!