subass

The area right below the asshole and before the taint.

After playing basketball, Nick's subass smelled like a pirate's foot.

by Michael Faillace January 09, 2005

oobass

The part of the ass above the asshole that's just pure buttcrack.

As the plumber bent over, Mary could cleary see his oobass.

by Michael Faillace January 09, 2005