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20 Social Media Slang Terms That Defined Online Conversation in 2025

A retrospective guide to 20 slang terms featured in a 2025-focused glossary, from “delulu” and “rizz” to “lore” and “IRL aura.”
Opened Runtime5 min Written byDocumentaryTube Team
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Here are 20 slang terms featured in a 2025-focused glossary, with plain-language meanings and examples of how context changes what they convey. They are an editorial selection—not a ranked list or proof that every term began or peaked in 2025. The source article was published May 26, 2026, so this is best read as a retrospective snapshot of online culture.

How to read this 2025 slang list

Many of these expressions were already in circulation before 2025. Some gained renewed visibility or developed sharper meanings in online use; the list does not establish their year of origin. For example, The Week’s September 22, 2025 explainer traces “rizz” to charisma and internet and gaming culture, and describes “ate” as praise for a strong performance.

The glossary does not provide per-term usage counts, a ranking method, or a representative sample. Treat the terms below as a curated guide, not a measure of which slang was most popular. Their meanings can also shift with tone, community, platform, and the video or meme around them. A TikTok voiceover, an Instagram comment, a sarcastic X post, or a private Discord message may frame the same words differently.

20 terms and what they mean

1. Delulu

A playful shortening of “delusional,” used for unrealistic optimism or imagining a hoped-for outcome as if it were likely. It can be affectionate or self-mocking: “I’m delulu enough to think they’ll reply.”

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2. Rizz

Charisma, especially the ability to flirt or attract someone. Calling a person “smooth” or saying they “have rizz” is generally praise, though it can be teasing.

3. Unc

A joking label for someone acting old-fashioned, out of touch, or unusually serious. It borrows from “uncle” and often pokes fun at someone’s habits rather than stating their age.

4. Crash out

To react intensely, lose control, or make a reckless decision. It usually suggests that emotion has taken over, sometimes with consequences.

5. Lock in

To focus seriously on a task. Someone might say “I need to lock in” before studying, working, or preparing for a challenge.

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6. Cooked

A context-dependent reaction meaning exhausted, embarrassed, in trouble, doomed, overwhelmed, or defeated. “I’m cooked” after a long day may mean tired; after a serious mistake, it can mean there is little hope of avoiding consequences.

7. Let him cook

A request to give someone time to develop an idea or show what they can do. It can express genuine confidence, or ironic patience when the person’s plan looks questionable.

8. Ate

Did something extremely well, especially in fashion, performance, makeup, or a sharp comeback. “She ate” is enthusiastic praise.

9. No crumbs

An intensifier often paired with “ate”: the performance was so strong that nothing was left to criticize. It is emphatic and usually playful, not a literal assessment.

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10. Main character energy

Confidence or drama that makes someone seem like the central figure in a moment. Depending on delivery, it can be admiring or a teasing description of self-focused behavior.

11. Canon event

A difficult, embarrassing, or formative experience framed as something a person has to go through. The phrase borrows the idea of events fixed in a story’s canon; online, it is often used humorously.

12. NPC

Short for “non-player character,” a term from gaming. As slang, it labels someone or something as generic, repetitive, or predictable. Because it can reduce a person to a stereotype, it may sound insulting.

13. Side quest

An unexpected diversion from the original plan. A spontaneous errand or unplanned conversation might become “a side quest.”

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14. Lore

The backstory or context behind a person, relationship, or online moment. Asking for “the lore” means asking what happened before the part currently being discussed.

15. Deep fried

Media that has been heavily distorted—often oversaturated, noisy, or visually chaotic—for comic effect. It commonly describes an image or meme rather than a person.

16. Brainrot

A hyperbolic label for absurd, repetitive, or engrossing content that feels as if it is melting your brain. People may use it jokingly about a meme, a fixation, or their own habit of consuming too much of something.

17. Glazing

Excessive praise, often framed as embarrassing, over-the-top, or insincere. Calling someone out for “glazing” suggests their compliments have gone beyond ordinary admiration.

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18. Sus

Suspicious, strange, or questionable. The tone can range from a light joke about something odd to a serious expression of distrust.

19. Mother

A compliment for a powerful, stylish, talented, or iconic woman or femme-presenting person. It is an admiring, celebratory usage, not a literal reference to parenthood.

20. IRL aura

Someone’s presence or vibe in person, sometimes contrasted with the persona they project online. “IRL” means “in real life”; “aura” here refers to an impression, not a measurable quality.

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Which terms do similar jobs?

Grouping terms by what they do can help distinguish them. The categories are practical rather than exclusive: irony and tone can shift a phrase’s function.

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Communicative function Terms Typical tone or use
Praise or admiration Rizz, ate, no crumbs, mother Usually approving; “rizz” centers on charm, while “ate” and “no crumbs” praise a performance or achievement.
Reaction or judgment Cooked, crash out, sus, glazing, NPC Ranges from comic exaggeration to criticism; context determines whether the wording feels playful or harsh.
Focus or conduct Lock in, let him cook, main character energy Describes concentration, giving someone room to act, or taking a starring role in a moment.
Identity, presence, or personal context Unc, IRL aura, delulu Characterizes a person’s behavior, in-person impression, or optimistic self-deception, often with humor.
Backstory, detour, or media style Canon event, side quest, lore, deep fried, brainrot Frames an experience, adds context, describes a diversion, or labels a style of content or fixation.

What “trending in 2025” does—and does not—mean

The title of the Position Is Everything article published May 26, 2026, presents these 20 terms as a 2025-focused selection. It does not establish that all were coined in 2025, that all peaked that year, or that they remain widely used in 2026.

Separate figures from Sprout Social illustrate why trend numbers need to stay attached to their source and scope. In its 2025 analysis, the company reported 31.9 billion impressions for “Aura,” its 2025 Word of the Year, and 3.8 million mentions for “6–7,” a phrase it linked to Skrilla’s song “Doot Doot” and described as a playful inside joke among younger audiences. Neither term is one of the 20 entries above, and those figures do not measure this list’s popularity. In the same December 3, 2025 announcement, Sprout Social quoted its General Manager of Listening, Paul Quigley: “Social media didn’t just reflect culture in 2025—it created it.”

Sources

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