verb: to do something stupid, immature. to lack rational judgment.
noun: the space underneath a man's scrotum before his anus; a normal person minus reason and accountability.
noun: the space underneath a man's scrotum before his anus; a normal person minus reason and accountability.
I can't believe I stapled my scrotum to my chair again. I really pulled a derf.
Dude, you only worked 3 hours today, don't pull a derf.
Dude, you only worked 3 hours today, don't pull a derf.
by Derfilicious December 16, 2007
More fondly refered to as "derf" or "derf-derf" he is the most idiotic and worthless kid in my psych class. He laughs at everything you say to him which more often than not is an insult, usually referring to his step-mom who has fake titays.
by Jeff February 1, 2005
noun: An inept or foolish person, someone who doesn't use their head. On the PLATO computer system of the 1970s (which in many ways foreshadowed the Internet), a derf was one who left their computer terminal without logging out.
verb: On PLATO, a prank played on a derf. Sending out unpleasant or embarrassing messages under the handle (or "signon") of a person who'd forgotten to log out. Or ruining programs they've been working on.
verb: On PLATO, a prank played on a derf. Sending out unpleasant or embarrassing messages under the handle (or "signon") of a person who'd forgotten to log out. Or ruining programs they've been working on.
noun: Wow, "Melvin of MIT" is a real derf! Look, he just walked out and left his terminal logged in.
verb: Hey Melvin, I just tried to run one of your programs and it looks like somebody got into it and put in a bunch of porn. Looks like you got derfed!
verb: Hey Melvin, I just tried to run one of your programs and it looks like somebody got into it and put in a bunch of porn. Looks like you got derfed!
by Jay Young March 8, 2008
When one of your friends attempts to become the incredible hulk when drunk and no one will give them more alcohol.
by Steve_42 January 22, 2009
an expression which has recently spread through out the Vancouver area, which means to sniff some cocaine.
fuck man, last night i snerfed way to much derf.
I just picked up and 8 ball. get ready to snerf derf!
I just picked up and 8 ball. get ready to snerf derf!
by rapies1991 June 13, 2011
by Anonymous March 9, 2003
The act of 2 buck naked men in a horny frenzy come together taint to taint and mash them together until the sweat mixes with ass juice forming a burnt buttery looking substance that smells of Axe body spray, Ball sweat and Shit!
by Krumpet Puncher September 2, 2015