Rainbow dash is a pony she is friends with pinkie pie and her adopted sister Scootaloo
rainbow dash's cutie is a cloud with rainbow lightning bolt on it
Someone who loves to do gay ships with anime, cartoon, or tv characters, or even real people.
A girl that dyes her hair different colors, you assume the carpet match the curtains.
Look at the honey, she definitely has a rainbow bush.
When a person uses every color of chip two times on one raise during a game of poker; mostly in Texas Hold 'Em.
Oh my god... Double Rainbow Raise... Double Rainbow Raise all the way across the table...
A homosexual man, especially effeminate that is rather stupid.
Bravis: Since we can’t call them f*gs anymore, I’ll make a new slur
Selden: What
Bravis: Rainbow Wanker
Selden: Let’s add it to Urban Dictionary!