When a girl os on her period and the guy sucks her pussy and the girl sucks his cum and they exchange in a kiss....
U gave Sheran a rainbow kiss last night...heavy and colorful ...
by Danienellie August 10, 2006
When a guy eats out a girl with her period then she blows him then they kiss with all of the stuff in their mouth
Ew you gave a rainbow kiss you nasty!!
by Lexi November 25, 2003
When a blokes cums in a womens mouth, while the bloke eats her pussy getting a nice mouth of blood. Then they kiss and mix the cum and blood together.........nice!
"I got a nice rainbow kiss off Sharon last night"
by The expert April 09, 2006
When a girl is on her period and a guy licks her out.
Can also be when a guy licks out a girl when on her period and he kisses her after licking the pussy and transfers the period blood back into her mouth.
Only a real whore would attempt this.
1. I just gave this girl a rainbow kiss
2. You are fucking disgusting!

1. Never try a rainbow kiss, you will throw up
2. I know, me and this whore did it last night and we threw up in eachothers mouth !
by what was that! August 27, 2010
an extention of red socks
once red socks has been achieved the couple kiss and exchange the expelled blood
girl: shall we rainbow kiss now

Guy: (muffled) mmm hmm
by james J.D.R. April 08, 2011
when a girls on her period and gets licked out then gives him head and they pull straight after.
im on my period finally so now we can have a rainbow kiss.
by doovde January 10, 2008
To have a Girl stand over your mouth while she is on her period and to bleed thru her pussy into your mouth!
I Gave Avatar_pk3r1 a Rainbow kiss and he Loved it!
by Mitchell Lockwood December 29, 2007
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.