short for super definitions

it's what you find when you're just casually looking up a word, but the definition is just way too fucking long, and you nearly get a cramp in your scroll finger just searching for the end of it.
there is a super def for just about every big celebrity or big
musician. for example look up Elvis Presely and you will be treated to multiple super defs. this is especially frusterating because the true definition for Elvis is just simply the king of rock n' roll. see? no super def needed.
by wienerface January 4, 2010
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It means tha shit nobody can beat it
Ayo chek out mah new 900 dolla jeanz they Fresh to Def
by L'z November 10, 2003
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The dopest, most unstoppable hip hop label since Def Jam.
"Cuz muthafuckers are bored!"
by edd0 August 30, 2003
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1.: A slang term for "most definitely."
2.: A rapper.
3.: Deaf - this useage is the least common, mostly by people who didn't understand it in the first place or mispronounced.
1.: "Am I going to the party? Mos def!"
2.: "Mos Def is one of the best rappers of our time."
3.: "After that concert, they're mos def."
by Gillian January 5, 2005
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Mos Def is many things. In everyday lingo, Mos def is an abbreviation that can mean "Most definitely"(1) wich originated from the ghetto but like every other gansta term has evolved inti something widely used by young and filthy rcih white kids.

Mos Def in the music and film industry is the pseudonym of Dante Smith(2). Quasi legendary emcee who's soulfoul approach to hip hop and unique style has made him one of hip hops heavy hitters. He and Talib Kweli are known to collaborate alot, even making Black Star. Mos Def is also a pretty good actor who appeared in the remake of "The Italian Job" and the still in production "The Hitchikers Guide to the Galaxy".

Last a probably least, Mos Def is a brand of urban clothing(3). Most of they're stuff is pretty basic, but pretty cool. Hell, I'd pay for a sweatshirt that says "Mos Def"

Last and probably least,
1-Crack Peddler: "HEY BITCH! You wanna suck my cock for a crack rock?"
Crack Whore:"Mos def!"

2-Man Mos Def is ill, but he was really pushing his luck with his newest album.

3-Guy 1:Hey look, is that a "Mos Def" brand sweatshirt?

Guy 2: *Looking at sweatshirt clearly labeled "MOS DEF"* man, you're lucky I dont have my trusty 2 by four to beat yo ass.
by mrpopenfresh March 6, 2005
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another way of saying definitely.
Brian: you commin over tomorrow?
Pete: oh, fo def.
by Pete Larson July 31, 2006
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