noun, used for part of anatomy observed by others when one is bending over and one's trousers (often jeans) slide down the hips to reveal the upper region of one's ass cleavage.
abrev. for 'Bertie Buttcrack'
abrev. for 'Bertie Buttcrack'
by will11 July 15, 2008

by Will11 December 05, 2007
