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1.
A Grandpa who thinks he's studly.
Many Grand Pricks drive Grand Prixs.
by Carman Guya January 06, 2007
 
2.
Not to be confused with a Grand Prix, a Grand Prick is somebody that goes out of their way to be a complete and udder asshole to anybody and anything that crosses their path.
Person 1:"What the Fuck!? That guy just cut me off, gave me the finger, and ran over that kitten!"

Person 2: "Yeah he's a total Grand Prick"
by TheKingz July 09, 2011