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Occurs when an illness spreads amongst a group of bros. Usually occurs after a brodeo, brobeque, broadtrip and/or brodown
Bro 1: Hey bro, good thing we didn't go to that brodeo on the weekend.

Bro 2: Ya bro, I heard the Brobonic Plague hit those guys hard.
by Jesus Mary and Broseph November 19, 2009

Words related to Brobonic Plague

brodeo broad trip brobeque brodown bromance brome-wrecker broner bros