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1.
Pathological fear of bros and anything bro-related. May or may not include fear of altbros, depending on the procent of bro-ness of the altbro.
Brophobia: You'll know it when you feel it.
by Shazzam!! November 01, 2009
 
2.
A fear of "bros" and bro related concepts, social standings and other impacts on society caused by bros.
My brophobia began to act up after that show last night. There was enough jäger, fist pumping and disrespect towards the vibes of others to end the world!
by SeeKnowledge June 02, 2014