look up any word, like usuratonkachi:
Performing anal sex whilst using mashed potatoes as lubricant.
Guy 1: I didn't have any lube last night, so I used my leftover mash taters.

Guy 2: A Mashed Potato Butt Fuck? Is that safe?

Guy 1: Sure.
by Xzurii December 12, 2009

Words related to Mashed Potato Butt Fuck

butt fuck mashed potato wyb