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The effect produced when a car bumps its sound system loud enough to shake the whole car, and rattle the trunk. Most common in shitty Hondas and Toyotas, driven by douchebags that try to be gangsta or cool.
1. "Man will you look at that tool, driving around with his rattleback going"

2. "Dude check out this sick sound system I got! it totally gives me rattleback"
by Mikey The God September 22, 2011
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