As a police office is patting down a suspect, as he goes down the leg he get a whiff of nasty, sweaty, funky ass.
Man that MF'er had some major open ass.
by Mojo Man wolf October 31, 2006
Used to describe an unpleasant smell
Jesus Christ! Take a shower! You smell like open ass!
by gina November 20, 2003
The worst smell you can possibly imagine.
Oh shit! The mystery meat in the cafe smells like open ass. Fuck that, I'm going to the pizza place.
by KristynC April 14, 2006