butt_crack
When the top part of the ass is partially exposed above clothing, usually because the clothing is too short or loose fitting to fully cover the buttocks.
Do not use when the ass is completely bare and exposed.
Examples
* !post #5175126
* !post #5087474
See also
* Downpants
* Lowleg
* Wedgie
* Whale tail (clothing)
External links
* Wikipedia: Intergluteal cleft
* Wikipedia: Buttock cleavage
Aliases: none