A Rocky Rainbow is sex act. A female (or male) places a medium amount of Skittles candy in their mouth. They proceed to give a male a blow job. This gives a pleasurable feeling from the small candies moving over your penis and has the added effect of coloring your penis in a rainbow.
Dude, my dick has been rainbow colored for a week!" "What?! Why?" "That chick I met at your party gave me a Rocky Rainbow." "Dude! Nice!
by TheCandyKing August 21, 2010