piss knife

when someone freezes their piss into the shape of a blade and uses it as a knife.

john used his piss knife to carve a Halloween pumpkin

by the cuck champion May 14, 2019

maybe knife

That knife you use after making a sandwich and place on the edge of the sink because you might decide to make another sandwich

"Why is it that everytime I go into the kitchen there's a knife just sitting on the edge of the sink? Why can't you just put it IN the sink?"
"That's the maybe knife, because maybe I'll make another sandwich, maybe I won't. But I don't want to dirty up another one if I might make another in forty-five minutes."

by Red_Tandem_Bicycle April 30, 2024

Favred up a creek with no nig knife

fucked

When I lost my keys, I realized I was favred up a creek with no nig knife.

by B-O-U-S-S BOSS! March 7, 2011

Whore Knife

A knife one carries to fend off ravenous whores.

Terry kept his whore knife on him at all times.

by nknwngrwr June 1, 2020

Knife bait

When something is effectively bait for a stab or slash wound.

Hey, that baby looks like knife bait!

by US_PsyOp September 20, 2023

booker knife

When you take a spoon and shove it up your homey’s ass

I just booker knife Kenny’s ass

by Dirty Kenny with a stick up July 18, 2021

Knife in Mattress

A scenario, often playful and sexual, in which a person forcefully stabs a knife into a mattress and uses it as a sex toy, sometimes as part of an act or roleplay, while their partner or praises them.

The term is heavily inspired by a scene in the Book "Lights out" by Navessa Allen in which a character proposes the idea of riding a knife in a mattress.

Eammon i want you to grab a knife and stab it into the mattress and watch me ride it as you praise me.

Knife in Mattress

by Freaky Def August 10, 2025