The barracks is a building where unmarried military personnel live, it is mosty inhabited by men. A barracks bunny is a female military personnel who lives in the barracks and has random casual sex with many men in the barracks.
CPL Jones: " man, i havent gotten a piece in a good minute...ima hit up "so and so" the barrack bunny, shes a sure thing"
by mkb8705 November 9, 2009
a woman who hops from barracks room to room looking for a good time
Heidi is a barracks bunny...she was in two Marines' rooms in one night.
by SSgt J's Wife January 20, 2005