When a girl looks like a trout because she is takin it so deep (usually in her throat).

When someone gets so smashed that they do not remember what they did and did not make it to a social event, and are in no state for society.

Trout = 40 something male hanging out in clubs looking for younger females to prey on. (male Cougar)

A man who likes to date younger women (i.e. he swims downstream in age); Antonym = salmon (a guy who likes to date older women, or swims upstream in age). Synonym = male cougar

the act of sneaking up behind someone and moving your hand quickly back and forth between their knees, making the victim believe there is a fish between their legs.

The victim is at first overcome by confusion, which results generally in a high leaping motion followed by anger and rage once they realize what has happened.

when a yankee asks a stupid question that someone in the south would be considered a retard for not knowing.

Something you got slapped with in IRC