acey-deucey (plural acey-deuceys)
- (poker slang) two pair, aces and twos.
- (poker slang) An ace and a two as a starting hand in Texas hold 'em.
- (poker) A rare poker game where players bet on whether the next card will fall between two other cards, also called red dog.
- A variant of backgammon.
- (military, slang) An AC2: an RCAF Aircraftman 2nd Class.