tìm từ bất kỳ, như là tribbing:
 
1.
When a group of girls wear different colored lipstick and suck a guys dick, leaving different colored rings on the dick. Creating a rainbow effect :)
Me and 4 chicks had rainbow sex last night! RED YELLOW GREEN AND BLUE!
viết bởi Shwanky240 13 Tháng bảy, 2009
 
2.
having sex with a girl on her rag
Hey I'm up for some rainbow sex. I don't mind.
viết bởi Sun 10 Tháng năm, 2006
 
3.
When people from different races have sex, calling it rainbow sex, because of all the different skin colours there are.
A dark person, a fair person, a caucasion person and a mixed person have an orgy, it is called rainbow sex
viết bởi superhungarishman 06 Tháng tư, 2010