Knifey- a form of shartplug. Wherein you mold a piece of toilet paper into a sliver or "knife" and tuck it gently between your butt cheeks.
I ate a lot of chilli so I made myself a knifey and went to the movies feeling confident that no one would even know I was sharting.
by cMacthat October 23, 2011
Former buddypic moderator, Tlobaybee7, shoved a knife in her vagina and took pictures. Lied about it, saying she googled the pictures. Then said that her friend took the pictures for her.
by Chuck8303 December 15, 2007