The Collaborative International Dictionary of English v.0.48:
old fashioned \old fashioned\, old-fashioned \old-fashioned\n. A cocktail consisting of whiskey, bitters, and sugar, garnished with with fruit slices and often a cherry. [WordNet 1.5 +PJC]WordNet (r) 3.0 (2006):
old fashioned n 1: a cocktail made of whiskey and bitters and sugar with fruit slices