Brian and all his friends came over last night in different colored polo's. I could practically taste the rainbro.
by Reisencach February 08, 2010
A homosexual male, who still maintains all the qualities of true bro's. The best example is Neil Patrick Harris.
Friend 1- Wait, so you're saying Esteban played basketball today? I thought he was gay.
Friend 2- He is. He's just an ultimate rainbro.
Friend 2- He is. He's just an ultimate rainbro.
by Rainbro May 16, 2011
by test tickle February 29, 2016
by Danz Ferdinand January 15, 2008
Me and my boyfriend, Joey, decided to get extreme with our relationship. We jacked off together, catching each other's cum, then high-fived while listening to Metallica. We then created the Rainbro.
by Jewlz&Woody March 11, 2020
One of the guys who is a total bro (usually on a sports team) who takes the "acting gay" thing to far and actually engages in legit homosexual activity with his fellow rainbros.
Dude1: Hey man did you see those football players touchin each other's dicks in the showers?
Dude2: Yea dude they are a bunch of rainbros.
Dude2: Yea dude they are a bunch of rainbros.
by ErockNRoll October 31, 2009
by OneWorldDestiny December 23, 2018