A phrase with a few possible meanings, one being a reference to a two-pair hand in which one pair is aces and the other deuces. "Acey-deucey" is also sometimes used as a slang term referring to the hold'em hand of {a-}{2-}.

There is also a non-poker card game called "Acey-Deucey" which involves players betting on whether or not the rank of a third dealt card will fall between two others already dealt, a game also known as "Red Dog."