A muffin top is a slang term typically used to describe a person's body fat that extends horizontally over the edges of the waistline of tightly fitting pants or skirts, visible when there is a gap between the upper and lower garment.

What causes a muffin top?

Choosing fast food meals, eating quickly and eating processed foods that digest too fast are the biggest factors in maintaining the muffin top, says Vernace-Inserra, a nutrition counsellor at Inner Health Nutrition Consulting.

What does the slang muffin top mean?

slang. : the fatty flesh that hangs over tightly worn pants.