An open handed slap to the vagina
Joanne is kinky, she likes receiving a hard mupper before intercourse.
by Peter P. Pablo December 30, 2008
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1.A child over 200 lbs.

2.A strange way to say maybe.
1.My handsom boy just turned 4. He is muppers.

2.Are you a virgin? Muppers.
by BandS December 27, 2006
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Visitor from Pittsburgh area to Northwest Pennsylvania. Named for common local contraction for "I am up here"
"Muppere from Pittsburgh, you know where's the nearest Bennigan's?"
by NDNDND April 27, 2006
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