muffin top

or muf·fin-top

noun
  1. a crisp, flat muffin that resembles the top portion of a typical muffin.
  2. Informal. a roll of excess fat that hangs out over a person's waist when wearing a garment with a tight waistband.

Origin of muffin top

First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for muffin top

muffin top

noun
  1. informal a roll of flesh spilling over the top of a tight skirt or trousers, esp when the midriff is exposed

Word Origin for muffin top

C21: from the similarity of this to a muffin expanding over its case
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012