The act of a male and a female having intercourse until the male is almost at climax, where the male then pours multiple bottles of different coloured food colouring dye into his urethra before continuing. At the point of climax, the male fills the female with his semem mixed with the food colouring dye, which gives off the appearance of a rainbow.

"Elyalesiana was feeling pretty down, so I gave her a rainbow stream. She seemed to be fine after that."

"Dude, I fucked up."
"How, dude?"
"I gave my chick a rainbow stream on an unsafe day. Now I might end up with a rainbow-coloured baby."

Rainbow Stream by SmokyMcBong September 25, 2016

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rainbow shit

Girls who wear ridiculous amounts of colours on their clothing. Play safe. Play black.

"Brittany didn't get the memo about always wearing black, it's 2016... She looks like a rainbow took a shit on her

"Yea totally a rainbow shit."

rainbow shit by UndercoverOrca August 9, 2016

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rainbow cow

When every udder releases a different flavour of shake...

Strawberry, vanilla, banana, and Oreo.... You don't know which to get under first.

HOLY COW.. It's a rainbow cow, I need me some Oreo shake fresh from the udder.

rainbow cow by UndercoverOrca August 7, 2016

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rainbow shoes

Shoes that you can wear to a pride parade

Person 1: nice rainbow shoes
Person 2: thanks
Person 3: faggot

rainbow shoes by Whigger164 August 3, 2016