muffin (n.) Look up muffin at
"light, small cake made with eggs," 1703, moofin, possibly from Low German muffen, plural of muffe "small cake;" or somehow connected with Old French moflet "soft, tender" (said of bread). Muffin top in reference to waistline bulge over tight, low jeans is attested by 2005, from resemblance to baked muffins from a tin.