Def

An abbreviation of Definitely; a shortened way to express something without a doubt.

“We are def going to that party on Saturday! I already rsvp’d!”

Def

The slang way of saying "Definitely"

ya man ima def bust a nut to that

def

what someone types up on google to search for the definition of something

"autochthonous def"

def

Short for definitely

"The new Star Wars movie premieres Wednesday at midnight? I DEF need to get in line Sunday after lunch."

"I most def need to start yoga. I sound like the TinMan getting out of bed in the morning."

hi-def

The state of being so high, usually on marijuana, that the stoner becomes deaf. Often associated with being so absorbed watching HDTV that everything else is ignored. Inspired by a high deaf kid who gets deafer as he gets higher.

Peter was so hi-def that he couldn't even hear the police siren as they pulled up to arrest him for dealing hella-weed.

def comp

An abbreviated form of "definitely complimentary."

1.It can be used to affirm a questionable compliment between people

2. or it can be used to justify taking things for free.

1) "dude, your art is the shit"
"i hope thats a compliment"
"def comp"

2) "are these beers complimentary?"
"def comp boys, i dont see no sign that say otherwise"

Defness

Adjective; a unit of measurement describing the actual level of how def a person is.

Marshall is such an awesome cat, his defness is just unfathomable..