Mos-Def

Short for most Definatly

I mos-def love fries from McDondals

by And the Pickles January 1, 2007

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 30, 2008

Hi-Def

An excuse to buy a new TV.

Sure my TV is nice, but it's not hi-def.

by Something915 December 20, 2008

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

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 October 6, 2008

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

def period

short for def., short for definitely.

I def period did not understand that.

by saccharineacid July 11, 2004