Mos-Def

Short for most Definatly
I mos-def love fries from McDondals
by And the Pickles December 27, 2006
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Hi-Def

An excuse to buy a new TV.
Sure my TV is nice, but it's not hi-def.
by Something915 December 15, 2008
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For Def Sure

When simply saying 'yes' just isn't good enough. It's like saying yes, but X10. Usually used with an exclamation point
Kat: I'm so hungry
Reuben: Do you wanna get some Chinese food?
Kat: For def sure!
by Kitty Kat Wants Your Soul March 21, 2008
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Fresh to def

When you you get dat new whip and show it off
That car is Fresh to def.
by Fresh fo life October 27, 2009
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def tots

literally: definitely totally

def tots is a play off of the abbreviations of definitely (def) and totally (tots).
def tots can be used as a replacement for definitely, totally, or absolutely, and can also be used to emphasize an adjective.
EXAMPLE ONE
p1: that guy is so hot!!
p2: uhhh, def tots.

EXAMPLE TWO
p1: how was your weekend?
p2: it was def tots awesome!
by whyareallthenamestaken August 11, 2008
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def period

short for def., short for definitely.
I def period did not understand that.
by saccharineacid July 11, 2004
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Defs Ems

defs ems- people who are most definately emo an abbreviation of emo which is abbv. of emotional therefor reffering to people who are deffinately emotional
Person 1: Greg Katie and Amy ARE SO DEFS EMS!

Person 2: That PWNSxcore
by Gxcore November 29, 2006
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