1969 D. Pendleton 13 You're asking me to choose between earth crack and ass cracks.
1998 J. Ames viii. 211 Do you know in Florida they've made it illegal to expose the ass crack?
2015 (Nexis) 1 May 81 McQueen considered the lumbar region, right up to the apex of the ass crack, to be an erogenous zone heretofore neglected by fashion designers.