When a male doesn't wipe his arse properly after pooping . When he parts his bum cheeks you see shit caked in his arse hair aka brown curtains
by Poopybum15 November 09, 2019
A sexual act. When a man is engaged in sex in the doggy position, he inserts his penis into her (or his) anus and fucks them until he cums. Then withdrawing his penis and wiping it on her (or his) new light colored curtains. It usually ends with the other partner freaking the fuck out.
by Albert Fricken Einstien February 11, 2010