1 definition by Tylerey

Top Definition
1) To play music in your car with subwoofers loud enough to were other cars around you can hear the bass coming from them.

2) Also used when saying a song has a lot of bass, and hits subs hard.
1) The black people at the stop light in the Impala with 20" blades were bumping so loud it was shaking my car.

2) You heard that new Wayne song? That shit bumps.
by Tylerey December 29, 2010
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