rainbow showers 

A group of people pissing on one person

"I just sat there under a stream of rainbow showers"

rainbow showers by Chris1372 March 25, 2008

rainbow shower 

Vomit play. Contrast with "golden shower", "brown shower", etc

rainbow shower by Anonymous May 29, 2003

Rainbow shower 

Where the recipient of a rainbow shower is urinated on by multiple people simultaneously by people with varying levels of dehydration.

For extra points, urinators may have consumed beetroot (makes urine pinky-red) or berocca (green colour) in advance.

Oh my god did you hear Cathy's housemates gave her a rainbow shower last night?

Rainbow shower by Setvep December 14, 2021

rainbow shower 

n. A shower of urine delivered onto the victim by a multicultural group of pissers.

In prison, Sven, Tuan, Rajif, Leroy and Chief Bigbear all gave Stevie a rainbow shower.

rainbow shower by Mango January 2, 2003