British sort of rhyming slang term used in place of "dump" when someone says "I gotta go take a dump."
I'll be back later mate. I've got to go take a Forrest Gump.
by Mark H June 25, 2004
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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.

Guy 2: Damn....
by G-Ender July 21, 2010
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A certain ex-Govorner from Alaska that has a very low IQ.
Allison: "I can't believe Sarah Palin is really the Republican hope for 2012...she is Forrest Gump in a dress!"
Kris: "You betcha!"
by Silver Wear March 20, 2010
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when an old man gets his cock caught in his old lady's bush
by tim September 7, 2003
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a challenge to drink 15 Dr. Peppers in less than 8 hours. After you finnished the last Dr. Pepper, you must run out to sombody and say "I must had me about 15 Dr. Peppers"
In addition, everytime you used the bathroom you must cite "Mr. President, I gotta go pee"

This challenge is homage to the movie
by Big Bubba B June 10, 2009
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to sit on a bus stop bench and tell complete strangers your life story and then ejaculate all over their face
when she sat down beside him, the homeless man proceeded to crank that forrest gump
by austingale March 9, 2008
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