14
short for saying most definitely, or sure.
Yo you gonna be at the party tonight?" Jarel: "Mos def bro.
by 92Prodigy April 08, 2011
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18
(N.) When you reach the maximum of not being able to hear.
"Yo, I don't think that D-Bo heard me. He must be Mos Def now."
by G-Union October 21, 2003
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19
a bastardization of most definately
usually used in online lingo
A: hey
B: wuzup
A: n2mh u
A: ssdd
A: wanna see a movie
B: mos def
by cait/eileen January 30, 2003
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20
short for most definetly!!!!
tyler: Did it feel the best when i put it in your butt last night?

zane: mos def!
by jake1234 April 04, 2006
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