A closeted gay man.
Matt is a rainbow in the dark
When a male bends his own penis around and inserts it in his anus
Tim why don't you go give your self a rusty rainbow
When a lesbian at an all women’s college gets fucked by an array (usually 7 - one for each color in a rainbow) of individuals with various nationalities and cultural backgrounds.
Woah, did you hear?? “Tire” got the gift of a Rainbow of Fuck You’s last night after the poetry slam.
A rainbow rope refers to a sex toy of some sort (e.g. dildo, vibrator)
She has a box full of rainbow ropes in her closet.
When you want to bang a person of every race
One of my life goals is to bang the rainbow
Is a term that sounds hyper-sexual but really means to eat all sorts of colorful vegetables.
This chick had me over last night and really had me eat the rainbow. I never had so many vegetables.
When two or more companions lie on their back and puke in each others mouth.
"Me and Jerry did a Dirty Rainbow with my dad"