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1.
Spanish for asshole (as stated above). Word very characteristic from Spain, not used in Mexico or Latin America.
Ese tío es un gilipollas.
(that dude is such an asshole)
by C. Augusto Valdés July 24, 2004
 
2.
spanish for wanker/asshole
no seas gilipollas
dont be a wanker
by cracker March 25, 2004
 
3.
Spanish insult that literally refers to a man without a penis.
Metaphorically means somebody who is less of a man, who doesn't act like a man, and who cannot be considered a man.
"Antonio es un Gilipolla"
"Anthony is an Asshole"
by Lolitapink1985 November 01, 2005