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 Gerti
Mos Def
mos def a.k.a Black Dante a.k.a Dante Smith is an artist who shows plenty talents in singing,emceeing,and acting.
They got Biggie and 2pac/
Too much violence in hip hop/
By Jacynth
Mos Def
The highest possible degree to which one can be Def. The is no higher level possible to which one can be def, therefore mos def is the epitamy of defness. There is only one known person to have achieved a true mos def status, that person, formerly known as Date Terrel Smith, then adopted the name of Mos Def upon pushing through the plateau. This level of deafness is the epitamy of hip hop culture.
At one point in my life, i believed that i could possibly be mos def, unfortunately after further review i realized that i was just a trick ass mark.