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Rainbow Trout 

1. A very colorful, very homosexual fish.
2. A word most commonly used in the phrase, "Peace out, Rainbow Trout."
Person1: Hey man, I gatta go; there's pandas mauling my grandma. Peace out, Rainbow Trout!
Person2: Yar, peace.
Rainbow Trout by Crau February 11, 2010

Rainbow Trout 

A poop that is so big and so long that parts of it are sticking out of the water in the toilet bowl and are changing color due to oxidation.
Garrup hasnt pooped in 4 days, but today he finally made a rainbow trout and feels relieved.

Rainbow trout 

Covering a dick with honey and putting skittles all over it, ala ants on a log, then sucking said dick.
My wife wanted a sweet desert after dinner, so I prepared her a rainbow trout.
Rainbow trout by Dsenight February 8, 2020

Rainbow Trout 

A good looking girls pussy. Opposite of Brown Trout. See definition.
When a good looking girl walks past: "Trout! Definately Rainbow trout!"
Rainbow Trout by DJ Harman-E March 11, 2009

Rainbow Trout 

The after-effect of a rainbow party.

The result of one's trouser trout or slimy swimmer to be covered in multiple colors of the rainbow after a lass and her friends have each taken a turn slobbing on the knob with various shades of lipstick on.

Typically, the owner of said rainbow trout has no recollection of the events during or after the rainbow party. This is because large quantities of alcohol and/or other substances are enjoyed during.
"Did you see Ted's rainbow trout? It took three early load drops but they got every color lip-painted like champs!"
Rainbow Trout by PhoenixJC February 22, 2014

rainbow trout 

A rainbow trout is a trouser trout that has been painted in the rainbow colors of the gay pride movement.

Very festive.
To add a bit of zip to the parade, Buford took out his rainbow trout and waved it around.

There was much applause.
rainbow trout by scodder May 14, 2010
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026
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