1. The act of putting small coins, such as pennys and dimes, in the cup holders on car doors so that when the bass is turned up all the way on the car stero, the change rattles or is "Bumpin'.

2. A way of judging the "legitness" of a rap song's bass, if the change rattles than it is considered a legit song and should be enjoyed at a very high level.
"wow man, listen to that change, its bumpin' "
"You'd think Jay-Z would try to make his songs more legit by making them rattle more change, so they would be Change Bumpers"

Examples of Change Bumpin' Songs:

A Milli by lil Wayne
Bombs Over Baghdad by Outkast
Fuck tha Police by N.W.A.
No Tears by Scarface
Forgot About DRE by Dr. Dre ft Eminem
Because I Got High by Afroman

This is just a list of examples of Change Bumpin' music, there is a seemingly endless amount out there. Other songs can be considered Change Bumpin' with a vote of 3 or more people, and has to have majority vote or it is not considered to be a Change Bumper
by Change Bumpers 101 September 28, 2009
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