Knifehand 

Serves as a hand signal and way of pointing at things. A knifehand is done by fully extending and adjoining the thumb and fingers. If somebody points a knifehand in your direction, you're about to have a really bad day. It is also a strike in mcmap

Example 1: Even Chuck Norris fears the knifehand!

Example 2: Holy shit, the T-1000 just knifehanded John conner's foster parent in the face!

Knifehand by Kreator89 February 7, 2010

knifehand 

Kinda like a pimphand. You can point or hurt.

When Kyle points his knifehand at you, you know it's going to be a bad day

knifehand by hennaj November 24, 2011

knife hand 

When you take either your left or right hand and extend all fingers, with your thumb extended along the hand, much like a karate chop and you point your "knife hand" at other people and tell them how fucked up they are. Using lots of expletive deleteds are exceptable. You can also throw knife hands, which mean you are point your knife hand furiously at an individual in hopes he or she will retaliate with physical force in which you will ankle pick them and throw knife hands into their throat.

Did you just knife hand me?

knife hand by Muzz7297usmc October 10, 2008

Knife Hand 

Knife hand is something the Marine Corps produced during the Second World War, specifically in the Pacific Theater to deal with Japanese Banzai troops, and those select few Japanese troops who wielded katanas.
The Ka-Bar although useful, had a few drawbacks. The biggest one, having to be drawn out of its sheath. In a life or death situation where time is of the essence, this just was a major problem.
According to legend Chesty Puller while fighting in the Pacific, exclaimed "Fuck these fucking samurai wannabes! I'll show them!", took his hand, using his fingers created a spade-like shape, and proceeded to knife hand hordes of Japanese Imperial soldiers.
The knife-hand also became a tool for military training due to its ambiguous nature of weapon, human parts, and has been scientifically proven to increase the learning aptitudes of the ignorant and not-so-smart types.
The knife-hand was thus adopted, and became a part of American history.

Chesty Puller's knife hand really fucked up a lot of Japanese fucktards.

Knife Hand by fucktheairforce April 14, 2014

chill bro knifeman 

A random dude that pulls over on the side of the road to help you cut a plastic sheet that is stuck under your car. At first it appears that he is running towards you with a knife to shank you, but in reality he is just here to help and is a real chill bro.

I was stuck on the side of the road with a plastic sheet wrapped around my wheel, but a chill bro knifeman came to save the day.

chill bro knifeman by Thefza October 24, 2019

knifemanship 

Marksmanship, for knives. The discipline of knife-handling, covering skill in precision and speed of cutting, all with cavalier style. Also covers selection, care, safety, maintenance, and never once cutting yourself.

mom: who will carve the roast beast?
knifeman: allow me.

<knifes flash in a silver blur, and the beast is reduced to perfect portion slices>
mom: Impressive! Great knifemanship.

knifemanship by TreeWeezel April 26, 2011

knifehead 

A man who has been known to spread butter with his head on demand; enjoys climbing, cycling and lurpak. His uncle is a profesional climber.

Hey knifehead, can u spread my toast?

knifehead by CongoNatty May 21, 2018