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1.
Used to describe a big muscle-bound person, usually African-American.
Look at that big Robuck negro trying to steal those hub caps offa my car.
by Mojo Maniac July 14, 2008
 
2.
An adjective used to describe a person who is inclined to ditch his real friends for other people so he will possibly rise in popularity and seem a lot cooler then he is. Also has issues with cleanliness and is prone to pick his nose or eat his boogers.
Kid: " Dude, who's that guy over there eating his boogers behind a group of popular kids?"
Friend: "Oh that kids a Robuck, he used to hang out with us"
by MC4Life January 07, 2012