Green’s Dictionary of Slang

dirty whore n.

also dirty ’ore
[rhy. sl.]

(bingo) the number 34.

1960
19601970198019902000
2001
[UK]J. Franklyn Dict. of Rhy. Sl.
[US]J. Burkardt ‘The Bingo Code’ Wordplay 🌐 34: dirty whore.