(not) a dicky bird

(not) a dicky bird

(Not) anything at all. We've had him detained for four hours, but he won't say a dicky bird to us about his involvement in the robbery. We heard not a dicky-bird out of the kids all night—they were quiet as can be.
See also: bird, dicky
Farlex Dictionary of Idioms.

not a dicky bird

not a word; nothing at all. informal
Dicky bird is rhyming slang for ‘word’.
1988 Glenn Patterson Burning Your Own Sammy put his ear to where he thought its heart ought to be: not a dickybird.
See also: bird, dicky, not
Farlex Partner Idioms Dictionary
See also:
  • dicky
  • not a dicky bird
  • not say a dicky bird
  • give (one) the bird
  • give someone the bird
  • shoot (one) the bird
  • not say/hear a dicky bird
  • not hear a dicky bird
  • flip (one) the bird
  • flip someone the bird