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
A highly contagious, uncontrollable burst of laughter triggered by something so silly or absurd that it leads to accidental farting—often in rapid succession.
Example:
"We couldn't stop laughing at the joke—next thing you know, it turned into a full-blown tripplegigglefartty."