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A person that chews their food obnoxiously loud...to the point of sounding like a cow chewing grass.
"Dude...your such a plapper...close your mouth!"

"Bro...you sound like a cow..stop plapping!"
by Herbi October 27, 2007
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2
An extremely loud fart that occurs when your ass cheeks flap in the gust. Mainly occuring while seated on a chair.
Yo man, I just plappered big time
by the plapper101 July 20, 2008
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