a fly MC, often apperaring alongside Talib Kweli, The Roots, or Common
mos def is one ill nigga, son
by Ponyboy August 3, 2003
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Slang for 'most definitely'
"Wan' a cig, man? "Mos' def!"
by David Allison August 21, 2003
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A man who can not only act with 5 star ability, but can also create some of the best shit out on recording ever.
Mos Def yet an actor of decent fame still keeps his hip-hop true.
by Paul October 2, 2003
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(adv.) meaning: most definitely; the phrase also pays homage to the infamous emcee, Mos Def.
"You better hit me up with those tracks."
"I'll mos def hit you back, hommie."
by kduballstar October 4, 2005
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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 a.k.a Black Dante a.k.a Dante Smith is an artist who shows plenty talents in singing,emceeing,and acting.
did u hear "the new danger" by mos def?
by kaya April 6, 2005
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A poet and a great MC. Though his acting in the Alicia Keys video not so great. Check him out.
The mighty Mos Def, him and Kweli make a dynamic Duo.

They got Biggie and 2pac/
Too much violence in hip hop/
by Mos Def And Kweli are Blackstar February 26, 2005
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