Slag for 'Deffinitly Not!'
"Wanna kiss my ass?" "Def Not!"
by Briggmyster June 17, 2006
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Can be short for definitely or definition. It can also be used to emphasize a word such as something is really cool or really not cool, etc.

(orgin well the celtic swim '06-07 team can take credit i guess)
Gouge Vomit Burn is the def. of sick nasty. (definition) That's def going to happen. (definitely) Are we going to have a dance party later? Yeah def!
by Celtic Swim '06-07 January 28, 2007
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Most definitely never, ever EVER going to happen.
Your good friend: "You and that girl are cute together!"
You: "Def-not."
by Logan Hahn February 14, 2009
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The Asian girl asked, "What's your fav. position?"
Digitus answered, "Def. the doggy-style... Do you wanna do it?"
The Asian girl replied, "Nah, later maybe. I mean we just did in the forest this morning! We should not do it for a couple of days."
Digitus replied, "You're right. Do you want to watch some TV?"
The Asian girl answered, "Yeah."
They sat down as they turned on the TV.
by Digitus July 7, 2005
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1. short for definitely
2. short for definition
3. death, misspelled
4. record label Def Jam
5. deaf, misspelled

and most importantly:
6. HOT, COOL, GREAT!!
That song is def man!!
by SyntaxE July 16, 2006
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definately. offshoot of fosho, except less black. Can be considered the white man's fosho.
andrew: k party next fri at my house
patrick: for def i'm going
by Patrick Charles January 12, 2006
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- "Sometime in the future, we're going to that Harry Potter amusument park."

- "defs!!"
by letsTPtheplace July 7, 2010
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