English · Slang Candidate

quack

Proposed by a contributor, not yet supported by evidence.

Meaning · English

Any doctor.

⚠ Register: derogatory, humorous, slang

Where it’s used: Used American English

That quack wants me to quit smoking, eat less, and start exercising. The nerve!

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 “quack” mean?

Any doctor.

Is “quack” formal or informal?

quack is generally derogatory, humorous, slang.

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