English · Phrasal verb Attested

smart off

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

Both English Tiếng Việt

Meaning · English

To show disrespect verbally; to smartmouth.

Nghĩa · Tiếng Việt

thể hiện sự không tôn trọng bằng lời nói

Machine-translated — suggest a fix

Where it’s used: Used American English

He despised being away from the rest of the student body and would occasionally act out in defiance by smarting off or by being uncooperative.

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 “smart off” mean?

To show disrespect verbally; to smartmouth.

Is “smart off” formal or informal?

smart off is generally slang.

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