Top Definition
When a "Bro" is being preposterous.
"These 'Bro' words are getting outta hand, it's kinda broposterous."
#bro #preposterous #hipster #word #again
by badgrammir August 17, 2012
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×