mosdef 

shortened form for 'most definitely'

A: you gonna come out tonight?
B: oh mosdef!

mosdef by AznC June 18, 2003

mosdef 

It means 'most definately'

Q. "will you make it tonight? "
A. "mosdef "

mosdef by mitta lee-alle "hannah" August 11, 2010

mos def 

a fly MC, often apperaring alongside Talib Kweli, The Roots, or Common

mos def is one ill nigga, son

mos def by Ponyboy August 3, 2003

mos def 

Slang for 'most definitely'

"Wan' a cig, man? "Mos' def!"

mos def by David Allison August 21, 2003

mos def 

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.

mos def by Paul October 2, 2003

mos def 

(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."

mos def by kduballstar October 6, 2005

Mostefa

The most flirtatious boy you will ever meet. You will never forget this boy. He is hilarious and tenderhearted and an amazing friend. Everyone loves Mostefa. Popular, sweet creature. HE IS PERSIAN!!

This boy is Persian he is defiantly a Mostefa!

Mostefa by theNatalie September 24, 2011