'fifty-fifty' definitions:

Definition of 'fifty-fifty'

From: WordNet
adjective
Equal in degree or extent or amount; or equally matched or balanced; "even amounts of butter and sugar"; "on even terms"; "it was a fifty-fifty (or even) split"; "had a fifty-fifty (or even) chance"; "an even fight" [syn: even, fifty-fifty]

Definition of 'fifty-fifty'

From: GCIDE
  • fifty-fifty \fifty-fifty\ adj. equally large; -- of probabilities.
  • Syn: even. [WordNet 1.5 +PJC]

Definition of 'fifty-fifty'

From: GCIDE
  • fifty-fifty \fifty-fifty\ n. a lottery in which the organizers retain fifty percent of the money wagered, and distribute fifty percent of the wagered money to the winner. [PJC]