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5.
Most definitely

It plays off the term, "High Def."
Due 1: "Dude, we should get more beer."

Dude 2: "Most Def."
by Beavis McButthead June 11, 2010
4 20
 
1.
most definitely
"Should we go to 7-11?"
"Most Def"
by ryan August 19, 2002
147 42
 
2.
1) short for 'most definately'
2) Hell yea; fo'sho'
3) the pun is on the rapper Mos Def, however his name is completely irrelevant to this insert
*an asian girl walks by with a big ass*
1)Would you hit that?
2)Most Def!!!
by bringas June 30, 2005
52 25
 
3.
Most definitely; for sure.
1. "He's a creeper, mostdef."

2. "Are you coming to the party?" "Mostdef!"
by edennnn June 26, 2010
2 1
 
4.
(coming from "most definently")...meaning you strongly agree with someone else offer
Yo id rip that girl wide open...

Oh most def...most def
by bt June 20, 2005
27 26