Top definition
When a gang or a large number of people beat the living shit out of a smaller group of people (usually 1,2 or 3 people).

*Also see gang bang for similar meaning
Tim got charged with assault again, he and some mates were caught gang bashing some dudes over on West 12th St.
by Fish-o-matic March 27, 2008
Get the mug
Get a gang bash mug for your fish Zora.