kniver 

Someone who connives to shiv you

I'm plotting to put a shiv in johnny's side
You're such a little kniver

kniver by Rockalock March 30, 2015

Knifer / Kniver 

A person (usually one of your friends) that says they will do something with you, but then "stabs you in the back" and goes and does something else. (A "cunt kniver" is someone who will do this frequently with their girlfriend).

When someone you made plans with disappears and becomes a Knifer / Kniver

Knifer / Kniver by Tower July 5, 2007

Knives Out 

To pull a Knives Out is to make a mistake that is mistakenly and unknowingly correct, only realizing so after the fact.

I pulled a Knives Out on my Algebra homework yesterday.

Knives Out by nabaloonda November 15, 2020

Swimming Knives 

A deadly inhabitant of the waters off the shores of Australia. A designed killer.

The water surrounding Australia is almost exclusively inhabited by things designed to kill you; sharks, jellyfish, swimming knives, they're all there.

Swimming Knives by Scat Chambers March 15, 2008

knieriem 

The strap that connects a German's shorts to his socks. Commonly used in Germany as a last name "Knieriem"

I forgot to connect my knieriem this morning can you give me a hand?

knieriem by Chris Knieriem January 11, 2009

Britney Knives

Alter ego of Britney Spears who dances with “fake” knives.

“Look, there’s another Instagram post of Britney Knives.”

Britney Knives by TK2000 October 28, 2023

pee knives 

When you have to pee so bad that it feels like knives are stabbing your bladder.

Em: "damn, I've got to piss so bad that I have pee knives..."
Olivia: "damn"

pee knives by oliviaem July 14, 2009