Word.ws English Dictionary

blow the gaff

blow the gaff verb: to disclose a secret.

Verb

blow the gaff (third-person singular simple present blows the gaff, present participle blowing the gaff, simple past blew the gaff, past participle blown the gaff)

  1. (UK, obsolete, slang) To disclose a secret.
    • But, my child, if Geoffrey is to be got out at this immature stage it blows the gaff completely. Half of the crowd will vanish, including all the worst, and we shall have no proof at all of the real depths of the conspiracy.1934, Ernest Bramah, The Bravo of London
  2. (UK, obsolete, slang) To inform against a person.

Synonyms of blow the gaff

Forms of blow the gaff

third-person singular presentblows the gaff
present participleblowing the gaff
pastblew the gaff
past participleblown the gaff

Questions about blow the gaff

What does blow the gaff mean?
Blow the gaff means to disclose a secret.
What part of speech is blow the gaff?
Blow the gaff is a verb.
What is the past tense of blow the gaff?
The past tense of blow the gaff is blew the gaff.

Words near blow the gaff in the dictionary

  1. blow sunshine up someone's ass
  2. blow sunshine up someone's skirt
  3. blow the coals
  4. blow the cobwebs away
  5. blow the doors off
  6. blow the gaff
  7. blow the grampus
  8. blow the lid off
  9. blow the roof off
  10. blow the whistle
  11. blow this for a game of soldiers

Source and license

Adapted from Wiktionary: blow the gaff (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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