To un-intentionally show you bum. Usually only the top part is revealed when bending down. Or if you’re a builder of some description you will already be wearing loosely fitting pants that assist in revealing your bum crack.
I was walking along the street when I saw two moons looking at me. The fattest builder was showing every one his bum crack. To which I shouted out say no to crack!
by Harpo July 20, 2004
A poo hole especially designed for farts and shitting also it is a lovely shape and adds allot to the human body it a great feature you are lucky if yours is brown and hairy
by queefer1 October 20, 2018
Jay sus when i ran out of arse wipe this morning i never thought I'd be on this beach wiping bum crack gravy with the missus' t shirt
by Juicin' Mckracken-Stuff July 22, 2017
My juicy bum crack has no friends.
by Josh (has a massive cock) July 01, 2017
"dude, check out the chicks micklepock bum crack ass cleavage... i'd love to give it a lick."
"god damn i've got an itchy micklepock bum crack ass cleavage."
"woah!!! mate, pull up your trousers. your micklepock bum crack ass cleavage is giving me the stink eye"
"god damn i've got an itchy micklepock bum crack ass cleavage."
"woah!!! mate, pull up your trousers. your micklepock bum crack ass cleavage is giving me the stink eye"
by Lukris Aaromatt January 15, 2009
When you're outside having sex and you're ass is facing the wind and the wind blows up your arse a bit. Like if you part your arse a bit it'll get wind up it.
Y'know when you're at the park and you get wind up your bum crack just at the wrong time and your whole body shrivels up into a little raisin and you pull this face...
by _Undefined February 09, 2019
by Mainty O'Freddy July 27, 2006