DEF

Don’t try to fool your girlfriend because it can turn into a DEF. Dumb Epic Fail

DEF

by Solarsilicon October 22, 2017

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 it

Old skool version of low it meaning forget it, dont bother or dont even go there but in a nice kinda way

man sez 'bruv, shall we jack the offie'
man&man 'nah def it, its too on top'

by moi&dem January 15, 2007

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 January 20, 2003

defs

A short form for the word definetly.

"I'm defs keeping this on the DL."
"Are you going to John's tonight?" - "Defs."

by coolkidddd September 12, 2006

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

by Lady_Rae_Marie January 11, 2006

Deffing

1. To be worried or scared about something, frequently used to describe a drug-induced state of paranoia.

2. To vomit.

Origin: Great Grimsby. Possibly originally evolved from the word 'defecate', via 'shitting it'.

1. 'I'm deffing', 'She's deffin'-out', 'I deffed-out', 'Deff-out'

2. 'I just deffed'. 'He's deffin''.

by spacecaked March 15, 2011