A younger man (usually 10 years or more) who is sought after by a cougar.

Rainbow trout is a gay man sought after by a much older gay man.
Gayle was cruising the bars looking for a trout to bring home for the night.
by twoboxman December 29, 2010
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Mama Mione got an A+ on her unicycling exam. Trout!
by blissroxy March 22, 2021
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Any guy who is currently the member of a "rock" band.

can also be used as a adjective or a verb.
(see also "shrout")
"Hey, how was the show tonight? Awsome! The (n.) trout killed it and they were looking very(adj.) troutey!"

"Look at those (n.) trout (v.) trouting it up with those shrout."
by Sensetive Shrout March 2, 2010
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A turd floating in a body of water (i.e. a swimming pool)
The malfunction at the waste plant filled the bay with Long Island Trout.
by How Mal May 3, 2016
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A Stinky poon swimming with disease.
Went down on that girl from the bar. She got herself a case of the ditch trout
by Mcq31 March 4, 2017
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Mr.Toe: Fish, tu es une troute
by Dr.Todd February 7, 2022
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