When a group of girls (each wearing a different color lipstick) perform oral sex acts on a group of guys. The man to collect the most colors, on his johnson, after a given time wins the "rainbow race"
by spetznas1911_crazy russian January 04, 2012
It's when 7 girls each wear different colored lipstick the colors of the rainbow. They each put it on really really dark so that it rubs off easily. Then they each find a male and proceed to perform felatio on that person and whoever gets a lipstick mark fathest down wins the race
by RLXTB September 15, 2016