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!
A rainbow trout is a trouser trout
that has been painted in the rainbow colors
of the gay pride movement.
To add a bit of zip to the parade, Buford took out his rainbow trout and waved it around.
There was much applause
A young gay man sought after by a much older gay man.
George went out to the gym to scope out the new rainbow trout lifting weights.
A good looking girls pussy. Opposite of Brown Trout. See definition.
When a good looking girl walks past: "Trout! Definately Rainbow trout!"
A piece of Poo similar to the species the Brown Trout
however this one has visited a Rainbow Party
and gotten a full set of lipstick rings on it.
The girls at the party were so nasty I cant believe they gave me the Rainbow Trout.