When a person usually a woman doesn't quite wipe all of the shit from her ass crack so that it builds up juices through out the day
Brandon: Man you sure had fun at the club last night how was that fat chick you brought home?
Dustin: Dude I got her back to my place and once I Got them drawers off I realized she had the worst case of SKANKY TAINT I have ever seen.
Brandon: You still hit it didnt you?
Dustin: YEP...