While many young women of our time have become attracted to men that happen to be gay, for pleasure, the men won't tell them that.
Therefore, when tasting the rainbow, a woman would be giving oral sex to a non-straight man.
Carl: Betsy got some action with Pablo last night.
Dick: But Isn't Pablo Gay?
Carl: Yep, guess she tasted his rainbow.
Double rainbow - when two guys cum over another guys face at the same time, hence crossing spunk streams - meaning to be double rainbowed.
"I really want a double rainbow tonight"
"Fancy a double rainbow?"
I really want to double rainbow him, are you up for it?"
You should have seen the double rainbow I got last night.
That was the best double rainbow I've ever had.
This is a sex position where the man is having sex with a womansuffering from a cold or flu, or other stomach problems. Shortly before the man ejaculates, he pulls out so the female can vomit on his dick.
My girl hasn't been feeling well all week, but I was really horny anyway. She ended up giving me a cambodianrainbow.
A gay sex position where a man does a back bend, then the second man inserts the first man's penis into his rectum, then proceeds to do a back bend over the first man with the penis still inside of him.
A group of girls and a group of guys get together. The girls paint the guys penis's the different colors of the rainbow and then the girl that can swallow the most colors or "taste the rainbow" wins.