When someone acts homosexual or just plain is. It's like calling someone a fag, but in a more discreet way.
Elizabeth: Are you friends with that kid james?
John: Him? no way, i'm pretty sure he's for the rainbow.
John: Him? no way, i'm pretty sure he's for the rainbow.
by Flying narwhal party October 29, 2010
Get the For The Rainbowmug. When you are hallucinating and see a huge line in the sky full of colors. Most likely because you drank way too much of that "water".
by Thethingthatyousawduringschool March 24, 2017
Get the Rainbowmug. Another way of saying "no homo", which is a phrase used after one inadvertently says something that sounds gay.
by Nuggie Mel August 21, 2010
Get the No rainbowmug. Someone who is bi-sexual. They aren't sure if they are gay or a lesbian a not so instead of feeling like a rainbow they feel like a rainbow?
by joeytheleo December 26, 2010
Get the Rainbow?mug. 
(florida)
slang word used to indicate a police officer in the area of where the officer can overhear you. rainbow is being used because when cops turn their lights off its a bunch of colors. and its better off the officer dosnt hear you talking about him like oh my god its the fucking police!
slang word used to indicate a police officer in the area of where the officer can overhear you. rainbow is being used because when cops turn their lights off its a bunch of colors. and its better off the officer dosnt hear you talking about him like oh my god its the fucking police!
by gummywormz April 3, 2009
Get the rainbowmug. Gays 🌈
by Magical 303 May 30, 2017
Get the Rainbowmug.