Top Definition
An old muscle car, (i.e. a Monte Carlo, Impala, Grand National) that is modified with hydraulics, ugly vinyl graphics and tacky gold rims that generally ruin the car's GOOD qualities.
Carlos: "Yo, check out my ride! It's a 1978 Monte Carlo with hydraulics, TIS rims, flame vinyl, a NOS tank by the console. It's beautiful!"

Any sensible person: "You just turned a good Monte Carlo into a crappy Beaner-Box."
by J-48273 June 28, 2011

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-A group of people containing mexican racial slurs in a confined area.
-A social gathering of Mexicans.
-Man Jeff your parties always turn out to be a beaner box.
-It smells like a beaner box in here
by Ice-dragon September 09, 2016

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