Definition of "Mickey"

(slang) A Mickey Finn; a beverage, usually alcoholic, that has been drugged.

(Canada) A 375-milliliter (13.2 imperial fluid ounce; 12.7 US fl oz) bottle of liquor, such as whiskey.  examples

(Ulster, derogatory) A Catholic.  examples

(slang, derogatory) Alternative form of Mick (“an Irishman”)

A diminutive of the male given names Michael, Mike or Mick.  examples

A diminutive of the female given name Michaela  examples