Arse crack

The void between the two bottom cheeks.

'You could park a bike in her arse crack!'

by Peter Lawson February 1, 2009

arse crack ya

when a male or female puts there index finger down the crack of there arse then rubs it under the nose of there victim, releasing the sweaty stench

dont be so mean, or i'll arse crack ya!

by matthew sopp April 24, 2007