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2 definitions by Don Farrar

 
1.
Someone who neglects, either through intent or forgetfulness, to flush the toilet after pooping.
Eeeuuww! Who's the flooper?
by Don Farrar July 24, 2006
 
2.
To neglect to flush the toilet after pooping.
Did you floop? That's really grody!
by Don Farrar July 24, 2006