look up any word, like donkey punch:
 
5.
when one has an erection and wishes to make it soft. usually because somebody is coming upstairs or into your room during a wank. And when made soft, will become a derection.
Mum: Dave, im coming to check if you are doing your homework!

Dave: Shit! i need a derection, and fast!
by elliot0084 June 10, 2008
 
1.
What a guy gets when he looks at somebody REEEEEALLY ugly.
Guy 1: ew, dude look at that fugly chick over there!
Guy 2: ahhh! my eyes!
Guy 3: ahhh! my dick! deeeeeerection!
by Emberlix February 19, 2005
 
2.
The deflation of an erection. Not to be confused with "direction"
The direction on a derection is down, unless something unnatural occurs
by Too Much Fun In Biology September 28, 2009
 
3.
When something is so unarousing that the male genitalia has an inward erection.
When I saw Brokeback mountain I had a derection.

The movie Nacho Libre makes me have a derection.

That ugly girl gives me a derection.
by Anonymous123469 July 10, 2006
 
4.
(n.) A event of the penis in which an erection is lost at an unusally rapid speed(often caused by the sight of an unattractive female). Pronounced like "erection" with a "d" in front of it. Opposite of an erection.
I just saw Rosie O'Donnell in a bikini and she gave me a massive DE-RECTION.
by D-Block(of Clemson University, SC) February 08, 2005
 
6.
the opposite of a erection
male shrinkage
I was so scared I got a derection.
When my parents came home and Sarah was in my room I got a derection
by marvin-d-martian June 07, 2011
 
7.
The opposite of an erection. Usually caused by witnessing either someone who is hideously ugly.
a: 'Oh my god did you see that aboslute mole.'
b: 'Yes, she gave me a derection.'
by LOX_Lox May 27, 2007