Bro Overflow 

The 2 or 3 random bro's that always show up at your party due to the overflow of bro's at other parties. Also known as "BrOver Flow"

Friend 1: Who are those random bro's that just came in?

Friend 2: Oh, those are just the Bro Overflow.

Friend 1: Bro Overflow?

Friend 2: Yea, the left over bro's. There was too much overflow of bro's at all the other parties.

Bro Overflow by RickRob -- Travisaurus October 7, 2011

Broverflow 

When the concentration of broiness obtains critical mass and spills over into surrounding areas.

I don't want to go to Grainey's, they get all of the broverflow from the Bistro and Roddy's!

Broverflow by Broverflowing November 14, 2011

Broverflow 

When a gathering suddenly accumulates more men than woman to a significant degree. A man to female ratio of a least six men to every one female constitutes an official broverflow.

"Don't invite anymore dudes over, we are about to have a broverflow." "This party is broverwhelming, a true sausage fest

Broverflow by Johniantoddgordoklein thechuck September 9, 2010