The act of coitus interruptus followed by urination, i.e. pulling out early, cumming on a female's stomach, then immediately
pissing whilst the penis is still erect, such that both fluids form a rainbow-like arc.
After six King Cobras and already breaking seal, I couldn't hold my piss in anymore, so I figured I'd give my girl a double rainbow. She was so happy she cried 'Double rainbow all the way, what does this mean!?!'
by Palin '12, Cuz It'd Be Funny November 05, 2010
A term expressing something of pure, unrivaled awesome. Used commonly when awesome or spectacular are simply insufficient
"Did you see that double backflip?
Totally Double Rainbow"

"hey, how was your weekend at the playboy mansion?
Double OMFG Rainbow"

"how's the scene at the party?
Double Rainbow
On my way..."
by wolff46 July 10, 2010
a very famous youtube video where a high guy watches the sky
oh my god a double rainbow
by JERKER19 July 17, 2010
An innuendo for multiple orgasm. As made famous by youtube actress Ceciley's verbatim, passionate interpretation of Hungrybear9562's viral video "Double Rainbow" In which she sounds like she is having multiple orgasms.
He showed me a double rainbow last night.
by cherprin July 15, 2010
intense joy, coupled with extreme emotional shifts; an experience equal to an orgasm
OMG, it's a full on complete double rainbow all the way across the sky!
by JERKER19 July 17, 2010
Pure unequivocal elation at seeing two of anything, particularly rainbows. Originated from a youtube video (search for Yosemitebear Mountain Giant Double Rainbow) where a man is so incredibly taken aback by seeing two, almost three rainbows!

He then proceeds to cry from happiness, as you too would do if you were there.
I can't believe I just got a raise AND a blumpkin!!!!!!! IT'S INCREDIBLE!!!!!! IT'S LIKE A DOUBLE RAINBOW!!!!!!!!!!!!
by MadP July 22, 2010
When playing poker (i.e. Texas Hold'em) and some one bets 2 of every color chip
I'll call your measly bet and raise you a double rainbow!
by Tom.Gar.On. July 23, 2010

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