Defs

A shortened word for defintions - used by instant messaging high school students and sometimes in every day conversation

Kenny: hey man, what other defs can we add? The world should be informed of the bad things people say
Alex : We'll help people define what goes on this this world...

by Kenny Benka March 13, 2008

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!

by stokes November 18, 2005

Def

The hip/gangsta way of saying Death.

According to the Ali G Show,
Ali: "Yo, lets talk about this thing called def man. You know, D-e-f"
Doctor: *my God this man is a complete moron*

by Well Thats my Mama May 11, 2005

def

Extremely good or talented, from the word "death".

That's a def tag up you got there.

by TFS July 25, 2005

defs

plurism of the word def

I spent all day entering stupid defs into the urbandictionary.

by Phrenesicko Decapitate May 23, 2005

DEF

DEF means that something is really good or to someones standards.

DEF also means not being able to hear anything

DEF does NOT mean definitly

That concert last night was so DEF

Yo Im DEF from that concert last night

by yosoypopichulodelanoche June 12, 2009

def

Def is when you're too lazy or your IQ is too low and you don't know how to properly write the word "Definitely".

So instead of looking uncultured and write shit like "Defenitely" or "Definetly" etc. you Def that shit and save yourself from embracements.

I'm def a retard
I'm def gonna beat my meat after writing this definition.

by Yung Iboprofen June 10, 2017