A shit so massive it goes from one end of the spectrum to the other. It typically starts off as a dry, hard bowel movement and ends in diarrhea.
Person 1: I was on the toilet for 20 minutes...
Person 2: Constipated?
Person 1: Nah, just took a rainbow dump... It kept coming.
Person 2: Constipated?
Person 1: Nah, just took a rainbow dump... It kept coming.
by Ark-7 February 29, 2012
 Get the Rainbow Dumpmug.
Get the Rainbow Dumpmug. Literally one of the best bands ever. 70s, psychadelic, hippie vibes if you’re into that shit but either way you’re bound to like it
by Elliot the mf coolest March 17, 2022
 Get the babe rainbowmug.
Get the babe rainbowmug. by cyclopentane April 20, 2023
 Get the rainbow flagmug.
Get the rainbow flagmug. by MGS123 February 22, 2015
 Get the rainbow bugstermug.
Get the rainbow bugstermug. by Stiner45 March 21, 2016
 Get the Pussy rainbowmug.
Get the Pussy rainbowmug. Mark thinks he's slick when he says he gets lots of rainbow dome.. but we know he's getting sucked off by a dude.
by Wahkeen Shambaugh August 21, 2018
 Get the Rainbow Domemug.
Get the Rainbow Domemug. Rainbow words- a thought you have when you are unconscious during surgery. It is a hint you are failing in English.
by I don’t feel so good Mr. Stark October 13, 2018
 Get the rainbow wordsmug.
Get the rainbow wordsmug.