when a friend gets tripped out by something and gets all emotional about it. generally in the sky.
Person 1: OMG look at those clouds theyre right over my house, and they soo big and black!:S

Person 2: Alright, i can see your having a double rainbow moment right about now
by xxhybridzxx August 18, 2010
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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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Viewing something, usually nature-related, so intensely beautiful that you can't even capture on your camera.
Liz: Oh my god, Emerald Bay is so GREEN. ITS SO GREEN.
You: I know you're having a Double Rainbow moment but you need to calm down or you'll fall off the edge.
by yuudachi November 22, 2010
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A double rainbow baby is a baby that is born are two stillborns or miscarriage.
Look at her, she’s so excited to finally be holding her double rainbow baby.
by Chichiyee November 18, 2017
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when something is super extremely impressive or daunting and is hard to describe in words.
the snow today is double rainbow awesome
by momo999 November 18, 2013
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A term or exclamation used to indicate that an object or an event is beyond words in the scope of it's amazing greatness.

This is of course based upon the Rainbow Scale used by many Hippy's, Bush Folk and Mountain Dwellers in their reference to, well, mainly rainbows, but also other stuff too:

1. Sprinkler Rainbow
2. 1/2 Rainbow in the sky
3. Full Rainbow all the way
4. Double Rainbow 1/2 the way
5. Double Rainbow all the way
6. Triple Rainbow

A Triple Rainbow is like the voice of god, the only way to witness one and live is in a game of Pictionary with Metatron.
Example 1:

Hungrybear9562: OMG! It's a Double Rainbow, All the way, across the sky!!!! DOUBLE RAINBOW ALL THE WAY!!! What does this mean?

Example 2:

John: Did you just hear that Hang Drum solo?
Peter: Yeah dude, it was Double Rainbow all the way.
by marvaenaeldo July 8, 2010
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Nathan Fillion uses the phrase Full On Double Rainbow, which builds on his creative use of Double Rainbow, only it's more intense.

It means that which is:

•fully ecstatically wondrous

•beyond joyfully amazing

•intensely orgasmically blissful
Here are some usage examples for Full On Double Rainbow. (For more examples, see the Twitter page belonging to NathanFillion:)

Nathan Fillion, on his Twitter page, kindly acknowledged my entry work defining his recommendation of the new "in" phrase: "Double Rainbow" on Urban Dictionary! He said it is "Full on." Thank you, Nathan. You are so Full On Double Rainbow!

The TV shows Castle and Firefly are so intense, they are Full On Double Rainbow!.

Serenity, the feature film starring Nathan Fillion, is so vivid, it's Full On Double Rainbow!

Nathan Fillion is so awesomely spectacular, sexyhotmessgorgeous, and brilliantly talented, his fame is sweeping across the nation, and over all the world! Nathan Fillion is Full On Double Rainbow!
by Kcat10 July 19, 2010
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