Social Media Slang 2025: Master TikTok & Instagram English

By Smart English | Updated September 8, 2025

Social media is where new English words are created every day. TikTok and Instagram shape how young people talk, text, and joke. Learn the top slang of 2025 with clear meanings, examples, and practice activities so you can use these phrases naturally.

Section 1: Top TikTok & Instagram Slang in 2025

Here are some of the hottest slang words trending this year. Use them in casual posts, comments, or chats with friends.

Slang Word	Meaning	Example
Delulu	Being overly unrealistic or living in a fantasy.	“She thinks he likes her? That’s delulu.”
Rizz	Charm or flirting skills.	“He’s got serious rizz.”
NPC	Someone acting robotic, boring, or basic.	“Stop being an NPC and join the fun.”
It’s giving…	It feels like / it reminds me of (used to describe vibes).	“That outfit? It’s giving princess vibes.”
Main character energy	Acting like the star of your own story.	“She walked in with main character energy.”
Bet	Okay / Sure / You’re right.	“Want to meet later?” — “Bet.”
Cap / No Cap	Lie / No lie (truth).	“He said he’s rich — that’s cap.”
Slay	To do something amazingly well.	“You slayed that dance routine!”

Section 2: How to Use Slang the Right Way

Quick tip: Slang is casual—great for social posts and chats, but avoid it in exams, job interviews, or professional emails.

Examples:

• Wrong: “I slayed the business presentation.” (sounds unprofessional)
• Right: “I slayed that TikTok challenge.” (casual, fun)

Section 3: Fun English-Learning Activities

1. Instagram Caption Practice

Write captions using slang to practice tone and natural phrasing. Examples:

• “Beach day 🌊 — it’s giving vacation vibes.”
• “No cap, I feel amazing today.”

2. TikTok Comment Practice

Watch a short video and post a slang-filled comment:

• “Main character energy ✨”
• “That performance was fire 🔥, you slayed!”

3. Speaking Roleplay

Practice with a friend:

• A: “I think I’ll win this challenge.”
• B: “Bet. You’ve got the rizz.”

4. Quick Slang Quiz

Match the slang to its meaning:

1. Delulu
2. Slay
3. Bet
4. NPC

Options: a) Okay / Sure   b) Doing something really well   c) Being unrealistic   d) Acting robotic or boring

Answers: 1-c, 2-b, 3-a, 4-d

Section 4: Tips to Master Social Media English

• Follow English-speaking creators on TikTok and Instagram to see slang in context.
• Pay attention to captions and comments—those are slang goldmines.
• Use hashtags like #Slang2025 or #Rizz to discover examples.
• Practice one slang word a day to build natural usage.

Conclusion: Slang Is the Language of Today

Learning TikTok and Instagram slang in 2025 is a fast, fun way to sound modern and confident in English. These words help you understand jokes, captions and online conversations, and they help you express yourself casually and naturally.

Your Challenge: Pick three slang words from the list and craft an Instagram or TikTok caption. Example:

“Morning coffee ☕ — it’s giving main character energy. No cap, I slay mornings.”

Next Lesson (Day 5, Post 3): Airport English: Security & Travel Safety

Download the Free PDF (optional)