8
When two girls squirt at the same time, causing a double arc of lady Jizz across the room.
'Dude, I was watching Lesbian cams last night and totally saw a Double Rainbow!'
by Huge Crystals March 12, 2014
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9
a phenomenon that puts anyone that sees on the ROFLcopter while having an orgasm attack
Person 1: (crying) "OMG a double rainbow!!!"

Person 2: (trying to talk while LOLing) "I-is this a s-s-sign of

G-G-G-God??!!"

ROFLcopter Captain: "You betcha. Now you and your friend

hop the heck on board lmbo."
by hyundajuno9876 March 17, 2011
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10
A troll who lurks on websites who likes to harm people.
Wow, that DoubleRainbow kid is harrassing everyone on tengaged.com!
by smi9127 June 22, 2011
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11
When you are fishing with another person and you both hook and successfully land a largemouth, smallmouth, or spotted bass at the same time.
"Billy john and I were fishin' on the Big D the other day and we got a double rainbow on my big fish spot. I couldn't believe it--two five pounders!"
by ranger_joe November 05, 2013
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13
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
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14
When someone is "supa dupa gay" they can be called a Double Rainbow. This is off the wall in you and your friends face homo.
Bro 1: Yo, check out that Double Rainbow

Bro 2. no homo
by Nugem January 11, 2011
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