deefs

an exclamation used in disbelief, shock and amazement and in response to other generally amazing or incredible situations, events, words etc.

1.
Marcos: Look at the wheels!

Nelson: Yeah, she does have a fat ass.

Rey: DEEEEFS!

2.
Deefs, my paycheck was horrible this week.

by Dictionwary June 25, 2007

deff out

to leave your friends to hang out with your boyfriend of girlfriend.

As soon as she started going out with Tony she completely deffed out and left Amanda.

by maggie February 25, 2004

Deefs

A person who is very bad at Halo, they usually play under the "default" tag.

Man this new guys nickname is definitely going to be deefs.

by Aburesh01 November 17, 2007

Deffo Jeffo

It means Definitely. Deffo is short hand for Definitely, just add a Jeffo for coolness!

Q 'You want to go to the movies?'
A 'Deffo Jeffo!'

by rachcook182 March 21, 2007

defs

plurism of the word def

I spent all day entering stupid defs into the urbandictionary.

by Phrenesicko Decapitate May 25, 2005

Ninja Defuse

The stealth and silent act of masturbating with other people in the room. A properly executed Ninja Defuse leaves all other people in the room unknowing of your deed. Most common in college dormitories and sexless relationships.

Guy 1: Dude i'm really horny, i need to go rub one out but my roommate is always sitting around playing Call of Duty.
Guy 2: Bro you need to try a Ninja Defuse.
Guy 1: WTF is that?
Guy 2: Just throw your covers over yourself in bed, and masturbate while he isn't paying attention, but keep quiet or you'll get caught!
Guy 1: Oh damn son! You're a genius!

by GoldenCoastBoyyy May 20, 2010

deffas

Definitely. Used in an offhand way to appear casual and cool, when really everyone know's the person is a twit.

"Yeah, I'll be getting drunk tonight, deffas!!!"

by K cizzle May 15, 2005