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1.
Taking a poop really quickly
I had five minutes to get to class so i had to take a speed poop
by Jeremy September 27, 2004
 
2.
A poop ranging from 1-2 grunts. Usually finished in a minute. Occationally results in itchy butt.
Joe: Are you ready to go to Six Flags?

Nick: Hold on, I have to take a speed poop.
by 1337gamer November 06, 2009