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1.
A "plarp" is the noise that occurs when a person with a fat, saggy booty plops themself into a chair and farts.
Laqueefa's plarp made the people in the surrounding seats leave the area.
by Lil' JuJu June 16, 2011
 
2.
The sound made as feces is released into a pool of liquids
Man i dropped a load and it plarped at the bottom splashing water on my anal hole.
by Uncle Malow March 18, 2003
 
3.
sound made when you slop on a big ol peice of ass (shit)
Man I will plarp yo ass
by foofypoof91 March 18, 2003