A long and involved, often exremely notable and serendipitous life story. Derived from the film Forrest Gump in which the main character tells his life story while sitting on a bus stop bench to various passers by.
Hey Dennis, I bet that accordion player over there has one hell of a Forrest Gump.
Why don't you tell me your Forrest Gump?
A badass mothafucker who taught Elvis, was a Football Superstar, Vietnam War Hero, Ping Pong Legend, Shrimp Selling Millionaire, Track Running sensation, Punched a Bitch, and banged a whore named Jenny.
To have a long, long conversation with complete stranger that creates an epic story about your past often in awkward locations such as elevators, park benches, bus stops, or even waiting rooms.
Also, you win if you include football, chocolate, shrimp or running insane distances.
Guy 1: I went to get checked up at the doctor's, but I totally got the Forrest Gump Effect by some old guy. I sat there for five hours without realizing my name was called.