all mouth and no trousers

A form of all mouth and trousers — Superficial, engaging in empty, boastful talk, but not of real substance.

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Meanings

adjectiveall mouth and no trousers (not comparable)
  1. UKalternativeidiomaticnot comparableAlternative form of all mouth and trousers.

Synonyms & antonyms

Also see
all hat and no cattle

Origin

A possible corruption of all mouth and trousers, but consistent with phrases of the form all hat and no cattle and all bark and no bite. The implication of this phrase is that the person boasts, but is a laughing stock.

Full word history & related roots →
Cite this entry
APA

all mouth and no trousers. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/all%20mouth%20and%20no%20trousers

MLA

“all mouth and no trousers.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/all%20mouth%20and%20no%20trousers. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “all mouth and no trousers,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/all%20mouth%20and%20no%20trousers.

Source: all mouth and no trousers on Wiktionary, CC BY-SA 4.0.