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16.
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
 
1.
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 dxo July 06, 2010
 
2.
Interjection used to describe something that is incredibly amazing. To be exclaimed repeatedly with joy and sobbing, preferrably on video posted to Youtube.
Whoa, that’s a full rainbow, all the way. Doublerainbow, oh my God! It’s a double rainbow all the way. Whoa, that’s so intense! Whoa! Man! Wow! Whoa, Uu, Whoa, Oh, Whoa Oh OH! Oh My God! OH MY God! AH AH AH! God! WHOW! OHHHH! OH, OH OH! WOW!! WOOOAH! YAAAAA! Oh! Oh My, oh, my God! Oh my God! Look at that! It’s starting to look like a triple rainbow. Oh, my God, its full on. Double rainbow all the way across the sky! Oh my God! (sobbing) Oh my God! Oh! God! What does this mean? Oh my God! Oh Ohhhh God! Its so bright! It’s so bright and vivid. Ohhh Ohhh Ohhh! Its so beautiful! (sobbing with amazement) (laughing with joy) ha, ha, ha, ha, oh, my God, oh, my God, oh, my God, its a double complete rainbow in front. Oh, my God, oh, my God, oh, my God, what does it mean. Tell me. Too much. Tell me what it means? Oh, my God, its so intense. Oh, oh, my God.
by spudart July 12, 2010
 
3.
A rare type of rainbow that may appear all the way across the sky after a period of rainfall. It can be described as very bright, vivid, and intense. However, many have fallen under the belief that a double rainbow is slowly transforming into a triple rainbow. This is impossible, and is an illusion created by either intense sunlight or a rainbow forming adjacent to the double rainbow.
Double rainbow, oh my god! It's starting to look like a triple rainbow!
by ZeroKaiser December 26, 2010
 
4.
When a girl gives a guy two orgasms in a row. The second one is usually more intense and as rare as seeing a double rainbow. Triple rainbows follow similar logic but are almost impossible to achieve in heterosexual, mature men.
Last night, Leona gave me a double rainbow with back to back blowjobs...Best sex ever!!!
by TonyO January 23, 2014
 
5.
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
 
6.
V. Sex position where the girl doesa brdige, and the guy does another bridge under her, and they fuck.
Dude, yesterday we double rainbowed in the back of my car.
by Mr. Awesome 1869 April 07, 2011
 
7.
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