Green’s Dictionary of Slang

dicky-bird n.2

also dickey-bird, dickie-bird, dicky
[rhy. sl.]

a word; thus not a dicky-bird, lit. ‘not a word’, i.e. nothing at all.

[UK]‘P.P.’ Rhy. Sl.
[UK]J. Curtis You’re in the Racket, Too 214: I never said a dicky-bird.
[UK]M. Harrison Reported Safe Arrival 50: I wz ’avin’ a dicky-bird wiv one er the stooards.
[Ire]B. Behan Scarperer (1966) 67: You don’t say one dicky-bird to her.
[Ire](con. 1940s) B. Behan Borstal Boy 199: We won’t say a dicky-bird.
[UK]S.T. Kendall Up the Frog 17: I met a china plate o’ mine. We ’ad a few dicky birds.
[UK]F. Norman Too Many Crooks Spoil the Caper 17: But ’e ain’t nevva said a dicky bird about you, Ed.
[Aus]J. Byrell (con. 1959) Up the Cross 49: Through it all, nobody said a dickie bird.
[UK]S. May No Exceptions in Best Radio Plays (1984) 128: ‘You’re not leaving this office until you tell me what’s the matter.’ Never said a word. Not a dicky bird.
[Aus]J. Byrell Lairs, Urgers & Coat-Tuggers 66: Lady Cynthia [...] zapped him with her zillion-dollar smile and let them through without as much as one dickybird.
[UK](con. 1960s) A. Frewin London Blues 259: I checked through [the papers] a column-inch at a time. Nothing. Not a dicky-bird.
[UK]J. Cameron Brown Bread in Wengen [ebook] TT never turned round and said a dicky.
[UK]J.J. Connolly Layer Cake 121: This geezer ain’t said a dickey-bird all the way.
[Ire]P. Howard Curious Incident of the Dog in the Nightdress 122: She hasn’t heard a dickie-bird from me.
[UK]J.J. Connolly Viva La Madness 423: Raul [...] hasn’t said a dickie-bird all day.