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2. def
It means like terrific or great or excellent
"I bet you were def." ~Fresh Prince Of Bel Air when he's talking to Ashley about her singing. 1st episode
1. def
def /def/ adj. to describe a person, thing, or event that is cool. iarchaic, circa 1981/i
"yo, mah pizzles, I got da hook-up at this def new club. It's suppose ta be off da hizzy"
by Jay Jan 19, 2003 add a video
3. def
Def ain't short for Deffinitly.

Def means cool, ill, dope. You know.
Yo man Bone Thugs N Harmony are one of the most def groups of all time.
by some polak Sep 17, 2004 add a video
4. def
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!
5. def
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!!
6. def
Short for definitely.

I always mispell the word definitely, so its easier to text def, than spend 5 minutes trying to fix the messed up word I get from T9 on my cell phone.
7. def
Short form of "definitely", as it flows a lot better and can be said much quicker.
Ray: Would you tap that?
Geoff: Def not!
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