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1) An object with a blade, primarily used for cutting.

2) To stab someone with a knife.
"I'm going to knife you if you touch my bitch again."
by Gumba Gumba February 25, 2004
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2
A Small Sharp blade that is used for cutting things. Can change the tide of battle.
Big Muscular dude:Im gonna beat you up!
Guy with Knife:Im gonna stab you.
Big Muscular Dude:Hey man, no hard feelings, I was just kidding.
by Bolter!! January 14, 2007
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3
To knife somebody is when a mans penis gets shoved like a knife into somebody vagina.
That knife was facinating
by Agfhdkyebsnajshsn January 07, 2017
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4
a knife can come in many shapes and sizes.
usually consist of a blade made of some kind of metal or stone, with a handle at the other end.
there are fixed blade knives. (meaning that they don't fold, they need a sheath to keep from getting cut)
and folding (the blade usually folds into the blade.)
one of the most widely known is the switch blade. (just a knife that has a spring loaded blade, no big deal)
and then there are knifes that have the blade the slides out of the handle. and some that have handles that fold onto the blade.
then there are piece of crap fantasise knives, dont waste your money.
not a weapon unless used as one, a knife is a tool, that doubles as a weapon.

then there is the term, to knife.
means to stab or cut someone, but not necessarily kill them.
very similar to shanking someone. (although shanks are better at a stab, usually favored in the hammer fist or oriental knife hold.)
lets go to the knife shop and buy a knife today.

lets knife him.
by castle May 19, 2006
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5
A sharp object used for killing people who don't do as they're told.
I got a new knife at the store today. It's very sharp and should be good for killing.
by Bloodbath 87 March 06, 2009
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6
A tool carried by people from "the hood" for performing various daily tasks.
"shit man dems i cant eat ids big lump o cheese"
"no worries blud"
"i iz carrying a knife"
by man dems November 05, 2007
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