Top 10 Slang Words to Know in 2025

That test was a bummer—I studied so much and still struggled! As an international student, you’ll likely hear words on campus or at social events that were never taught in class. Learning English is challenging enough, and now you need to pick up slang just to keep up with daily conversations. Our guide, Top 10 Slang Words to Know in 2025, will help you recognize new expressions, understand their meanings, and use them naturally.

What is Slang?

Before we dive in, let’s break down what slang terms are. Slang refers to informal words or phrases created by specific groups and commonly used in everyday conversations. Some, like “How are ya’?” become widely recognized across the country, while others, such as “The party was so lit,” emerge from pop culture and may be more specific to a certain age group or community. Unlike formal English, slang constantly evolves, but with our guide, you’ll stay updated on the latest terms.

For workplace-friendly slang, check out our other blog: American Slang Phrases in a Professional Environment.

Where Does Slang Come From?

When we think of slang, we often associate it with the younger generation or rap stars. However, slang has been around as long as language itself! These words and phrases help people communicate more efficiently, add creativity to conversations, and create a sense of connection with others. For instance, the word “booze” dates to the 1500s, originating from the Dutch word buizen.

Slang has evolved over centuries, emerging from different social groups, industries, and cultural influences. Many terms come from music, movies, TV, and even politics. For example, the phrase “woke movement” gained prominence due to political differences in the U.S. As language continues to evolve, people will always find new and creative ways to express themselves—slang is just one of them!

Why Should You Learn Slang?

First of all, knowing slang helps you navigate casual conversations, especially in social settings like college. It also makes you sound more natural, giving the impression that you have a strong grasp of the English language. Plus, using slang improves your ability to connect with native speakers and keeps you in the loop with social media trends (if that interests you). Whether you’re chatting with friends or shopping at the mall, slang makes communication feel more relaxed and effortless. Not to mention, it speeds up texting!

That said, while slang is common in everyday American conversations, it’s not appropriate for formal situations. Meeting your partner’s parents? Attending a business meeting? Writing a research paper or email? Leave the slang out. Glad we “cleared that up”!

Top 10 Slang Words to Know in 2025:

1. Extra

Meaning: Someone who behaves in an over-the-top, exaggerated, or flashy way, often drawing attention.

Synonyms: Overdramatic, exaggerated, flashy.

Example: “She threw a huge party for her dog’s birthday—so extra!”

2. GOAT (Greatest of All Time)

Meaning: Used to describe someone or something as the best in a specific field, often in sports, music, or entertainment.

Synonyms: Champion, legend, icon.

Example: “Michael Jordan is hands down the GOAT of basketball.”

3. Fit Check

Meaning: The act of showcasing or reviewing an outfit, often seen on social media or among friends.

Synonyms: Outfit review, fashion check.

Example: “Fit check! Let me see what shoes you pick out with your outfit.”

4. Lowkey

Meaning: Used to express something subtly, secretly, or in a way that downplays an opinion or feeling.

Synonyms: Slightly, secretly, quietly.

Example: “I lowkey love country music, but I don’t want anyone to know.”

5. Delulu (Short for delusional)

Meaning: Describes someone who has unrealistic expectations or is overly optimistic about something unlikely to happen.

Synonyms: Unrealistic, wishful thinking.

Example: “She thinks she’ll marry a billionaire—so delulu.”

6. Gassing Up

Meaning: Giving someone excessive compliments to boost their confidence, sometimes in a playful or exaggerated way.

Synonyms: Hyping up, encouraging, praising.

Example: “He’s gassing her up—he definitely wants her back!”

7. Legit

Meaning: Describes something as real, authentic, or trustworthy, often used to confirm truthfulness.

Synonyms: Real, true, genuine.

Example: “That job offer was too good to be legit.”

8. Lit

Meaning: Used to describe something as fun, exciting, or full of energy, especially parties or events.

Synonyms: Amazing, hype, lively.

Example: “The concert was so lit last night! I wish you came.”

9. Bummer

Meaning: Refers to a disappointing or unfortunate situation that causes mild frustration or sadness.

Synonyms: Letdown, misfortune, bad news.

Example: “It rained the only day we were able to go to the beach—such a bummer.”

10. Woke

Meaning: Describes someone who is socially aware, informed, and conscious about political, cultural, or social justice issues.

Synonyms: Aware, conscious, informed.

Example: “I’m so glad he’s woke when it comes to climate change issues.”

Choosing the Right Slang Word

As the saying goes, there’s a time and a place for everything—including slang. When using slang, choose words that feel natural and fit your speaking style. If a word sounds awkward or forced, it might not be the best choice. Instead, focus on slang that helps you express yourself more clearly and creatively.

If you’re unsure when to use a certain word, don’t hesitate to ask. People are usually happy to explain the meaning and context. Learning slang is all about practice and exposure, so the more you listen and engage in conversations, the more confident you’ll become.

At the end of the day, slang is a great way to sound more natural and blend into casual conversations. Just remember to use it appropriately, and you’ll master the art of speaking like a native in no time!

Study at the Best English School in Florida with 25+ years of experience. Learn more about our programs at www.ohla.com and get in touch with one of our many Student Advisors who will help you every step of the way.

Want to read more? Check out 8 Ways to Reduce Accent: Tips for Clearer English Communication.