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Goomba fallacy

(Internet slang) A logical fallacy that occurs when someone sees contradictory opinions expressed by members of a group and mistakenly believes that those people are being hypocritical, when in realit

ˈɡumbə ˈfæləsiCoined ~20242020sGen Alpha269 viewsLast reviewed Jun 29, 2026+ Add a definition
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Born ~2024 · no dated citations yet
2024BornToday, 2026

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#1·Apr 26, 2026

(Internet slang) A logical fallacy that occurs when someone sees contradictory opinions expressed by members of a group and mistakenly believes that those people are being hypocritical, when in reality those contradictory opinions were expressed by separate individuals.

Origin: . The term references an Internet meme depicting the fallacy using Goombas posted to Twitter by @supersylvie_ on January 29, 2024. Origin information sourced from Wiktionary contributors (CC BY-SA 4.0).
For parents

"Goomba fallacy" means: A logical fallacy that occurs when someone sees contradictory opinions expressed by members of a group and mistakenly believes that those pe.... This is informal slang, common in casual speech, texting and social media, but not appropriate for school work, applications or professional settings. There is no real cause for concern in itself; it is everyday peer vocabulary. If your child uses it, a light comment about audience and register is usually enough — no need to escalate. Context, more than the word, tells you whether to follow up.

For ESL learners

"Goomba fallacy" means: A logical fallacy that occurs when someone sees contradictory opinions expressed by members of a group and mistakenly believes that those pe.... Register: informal slang, fine in casual conversation, texting and social media but not in academic essays, business writing or formal speech. A common non-native mistake is to use the word in the wrong register, or to assume one fixed meaning when it is actually polysemous; always check the surrounding register and the audience before producing it yourself. In formal writing, prefer a neutral synonym or a short descriptive phrase, and use this word only when you have heard or read it being used naturally in a comparable context.

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For specific readers

"Goomba fallacy" means: A logical fallacy that occurs when someone sees contradictory opinions expressed by members of a group and mistakenly believes that those pe.... This is informal slang, common in casual speech, texting and social media, but not appropriate for school work, applications or professional settings. There is no real cause for concern in itself; it is everyday peer vocabulary. If your child uses it, a light comment about audience and register is usually enough — no need to escalate. Context, more than the word, tells you whether to follow up.

Why is this section here?

Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.

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🌐About Internet & Memes slang

Viral internet speak — memes, ratios, main-character moments, and the algospeak of every platform from Twitter to Reddit to TikTok comment sections.

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