Top definition
A terrible alcoholic beverage. Drop one shot of Bacardi 151 into a glass of your favorite Four Loko. Named after it's creator, Garrett Grohman.
A: I am white-girl wasted.

B: What are you on?

A: Grohbombs.

B: I'm calling poison control.
by @garrettgrohman July 06, 2011
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