mix-up - definition of mix-up by The Free Dictionary
mix-up also mix·up (mĭks′ŭp′) n. 1. A state or an instance of confusion; a muddle: a bureaucratic mix-up. 2. Informal A fight or melee. mix-up n 1. a confused condition or situation 2. a fight vb (tr, adverb) 3. to make into a mixture: to mix up ingredien...