by Lexie Lou April 09, 2008
A large shit that involves sweating and strainging so much that a change in wardrobe is necessary. Counting down from 10, start removing all your clothes. When all clothes are removed, release the load of shit from your anus and yell "Grand Slam". Then, if you are Spencer Meyer, continue to masturbate on the spot.
by Jizzman69 January 21, 2008
by dermena April 24, 2017
by Frank Slamdancelover March 08, 2009
When you have to fart and you have to clench your buttcheeks so you dont let loose, kinda like you slam on the brakes
by Bengay19 June 05, 2011
by uttam maharjan August 29, 2010