A guido and douchebag combination, a double negative by definition in that a Guido is by definition already a douchebag.
Dude, that guinea is such a guidouche!
by Franco Mena December 29, 2009
A person that is half Guido and Half Douche Bag. Usually dressed in button up shirts and crunchy over gelled hair.
"I'll never understand why this guy insists on dressing like a Guidouche."
by SelectaD March 28, 2010