1 definition by hobojoeroxursox

Top Definition
A main pony from My Little Pony: Friendship is Magic. This bitch is so fast, she was the first, and the last to ever do a sonic rain-boom. THE MOTHER-FUCKING SONIC RAIN-BOOM. YOU KNOW WHAT THAT SHIT IS? Only a Pegasus with mad SKILLS can pull that shit off.
And you just got 20% cooler in the 10 seconds flat that you read this.
Person 1: Hey, I started watching MLP:FM, and my favorite pony is Fluttershy, what's yours?
Person 2: MUTHA FUCKING RAINBOW DASH!
by hobojoeroxursox July 29, 2011

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