n. 1. One who, or that which, mixes. [ 1913 Webster ]
2. A person who has social intercourse with others of many sorts; a person viewed as to his casual sociability; -- commonly used with some characterizing adjective; as, a good mixer; a bad mixer. [ Colloq. or Slang, U. S. ] [ Webster 1913 Suppl. ]
3. a social gathering, game, or dance organized to provide an opportunity for people to meet each other; as, on the first night of the conference they had a wine-and-cheese mixer. [ PJC ]
4. a nonalcoholic beverage (such as fruit juice, club soda or ginger ale) added to an alcoholic beverage to produce a mixed drink. [ PJC ]
5. any device used for mixing. [ PJC ]
6. an electronic device for blending or manipulating sounds from different sources to produce a composite soundtrack, for an audio recording, video recording, or a movie. [ PJC ]
7. The technician who operates a mixer{ 6 }. [ PJC ]