Rainbro

When two guys cum in each other's hands, then high-five, letting the cum rain on them.

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

Rainbro

A straight male who supports his gay friends' lifestyle.

He's not gay, he's just supportive of his friends; a true rainbro.

by test tickle August 20, 2016

rainbro

A gay black man. A gay brother.

Sista 1 says: That man is FINE!
Sista 2: Girl, redirect. He a rainbro.

by LLLLLLLAM January 5, 2010

Rainbro

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.

by ErockNRoll October 31, 2009

Rainbro

An extra softboy. Isn’t afraid to cry. Used the 🌈 emoji too often.

Girl: Edgar sends me rainbow emojis all the time.
Guy: oh yea he’s such a rainbro.

by Jim124578 August 19, 2018