A large trout used for slapping people with in IRC channels. Used for humiliation.
/me slaps (name) around a bit with a large trout

Lulz slaps Lol around a bit with a large trout
by Frightful November 30, 2007
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An illness that causes someone to believe that they are a large trout, and therefore engage in large trout-related activities, such as swimming up waterfalls and spawning. Large Trout Syndrome can be contracted via contact with fairly small trout that wish they were larger.
Friend: I like your shirt, Craig.
Craig: GLUG GLUG GLRBBSHHH GLUUUUH
Friend: Uh, oh, Craig, you've caught Large Trout Syndrome!
Craig: GLRSHHHHH GLUG GLRSHH GLUUURG
by Admiral Foxface December 3, 2019
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An illness that causes someone to believe that they are a large trout, and therefore engage in large trout-related activities, such as swimming up waterfalls and spawning. Large Trout Syndrome can be contracted via contact with fairly small trout that wish they were larger.
Friend: I like your shirt, Craig.
Craig: GLUG GLUG GLRBBSHHH GLUUUUH
Friend: Uh, oh, Craig, you've caught Large Trout Syndrome!
Craig: GLRSHHHHH GLUG GLRSHH GLUUURG
by Admiral Foxface December 3, 2019
Get the Large Trout Syndrome mug.