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2.
The way in which douches deduce info and come to decisions. For example they must dedouche whether or not to spike a girls drink, join a fraternity, spike their hair, or wear a extra small shirt as an adult male.
He has the dumb look on his face because he can't dedouche which Nickelback cd to buy.
by CODIKITTENS May 27, 2010
 
1.
To logically conclude someone is a douche.
Mary: Have you met Brad?
Kim: Yep, total tool.
Mary: Agreed. Glad we dedouched that.
by Jjiggawhat May 23, 2014
 
3.
To "de-douche" is to become less of a douche.
"Steve is such a douche"

"yeah, we should try to help him de-douche"
by Itrees August 29, 2009
 
4.
Someone of french origin who is, without any hint of a doubt, a douche.
"Look at that frenchy fag. What a douch."

"Yeah, man, He's Dedouche."
by Dr. A.E.FuckHer. July 19, 2009