Plowing or Piledriving a girl that is a little on the chubby side.
When she puts on jeans some fat from her waist goes over the top of the pants making her look like a "Muffin". So when you plow this girl you are hence a "Muffin Stuffer!"
by King of Muffin Stuffers April 30, 2008
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Stuffing male part into females muffin.
I’m going to be stuffin your muffin tonight. Cause I’m the Muffin Stuffer Man.
by RCM-HMC October 9, 2021
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