The act of putting ones hand into a fist and extending the little finger along with the thumb. The hand must shake rapidly as if struck with temporary Parkinson disease while the person sways back and forth to catchy upbeat music.
As the band kicked off everyone started Bro'n Out in excitement.
by Scott Tory February 20, 2013

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.

×