by Daredevil69420 April 29, 2020

The action of using your dick to wipe your cum on a part of your partners body, in a similar fashion to how you spread butter with a knife.
by ElevenOsix June 2, 2018

by frankie, eddie, willy June 21, 2024

Something you bring to a gangbang in case two chicks want to get peed on at the same time that you set in front of your stream in order to drench two targets simultaneously. Preferably an ornate butterknife or family heirloom.
Dude, you see the piss knife I brought on Thursday? My grandpa passed it down to my uncle and he gave it to me when I was a kid.
by shoeze June 3, 2025

by MineOwedWu's June 29, 2021

"My partner talked me into trying the subterranean kitchen knife in the bedroom, our relationship will never be the same."
by brainstorm-with-friends August 12, 2017
