Used to descirbe something/someone epicly amazing... Like me! Do not use this on someone/something who is obviously not a triplekickassrainbow. Usually used to describe cookie monster cupcakes.
Pix: Kyra kyr, your a triplekickassrainbow!
Me: awww thanks Pix :D
or
This cupcake taste like a triplekickassrainbow!
Me: awww thanks Pix :D
or
This cupcake taste like a triplekickassrainbow!
by Silence, the ninja May 12, 2011
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