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1 definition by noob622

Acronym for "Reverse Burger Pressure." RBP is the small amount of force you apply while biting a burger to keep the condiments from falling out. Usually this is gained by squeezing the side of the burger opposite of your mouth when biting the burger.
His tomatoes fell out of his double Whopper due to a lack of RBP.
by noob622 March 19, 2013