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...
Alex : We'll help people define what goes on this this world...
by Kenny Benka March 13, 2008

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*
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 13, 2005

by Phrenesicko Decapitate May 25, 2005

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
DEF also means not being able to hear anything
DEF does NOT mean definitly
by yosoypopichulodelanoche June 11, 2009

by HiImRightYourWrong September 26, 2010

by Wriech July 01, 2007
