Rainbow slap

Rainbow slapping is act of smacking your girlfriend/boyfriend in the forehead with your penis while they are asleep or not paying attention.

Brent love rainbow slapping his girlfriend when she sleeping

by Dough_boy270 June 2, 2009

Rainbow Slap

When an uncircumcised man puts Skittles into his foreskin and slaps someone while yelling "smell the rainbow!"

My boyfriend Rainbow Slapped me the other day and it doubled as a really good snack.

by Nacho_7258 June 7, 2017