Top Definition
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
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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