muffin top

muffin top:
The abdominal spillover that results from a husky woman wearing a too-tight pair of low-cut pants.

meaning: when a woman or chunky monkey wears a pair of tight jeans that makes her flab spill out over the waistband, just like the top of a muffin sits over the edge of the paper meaning when a woman wears a pair of tight jeans that makes her flab spill out over the waistband, just like the top of a muffin sits over the edge of the paper