English · Slang Attested 18+

dumbassery

In real, traceable use. Part of the curated seed collection; community review is coming.

Both English Tiếng Việt

Meaning · English

Immature, foolish behavior; behavior typical of a dumbass.

Nghĩa · Tiếng Việt

hành vi ngây thơ, dại dột

Machine-translated — suggest a fix

⚠ Register: slang, vulgar

Where it’s used: Used American English

Examples

Speaking of savages, Bruce Cowell and his pack of jock-wannabes, who'd been kicked off every school team because of attitude problems and/or the use of illegal substances, were right on schedule for their weekly feats of dumbassery.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Common questions

What does “dumbassery” mean?

Immature, foolish behavior; behavior typical of a dumbass.

Is “dumbassery” formal or informal?

dumbassery is generally slang, vulgar.

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