A muffin-top is the phenomenon of overhanging fat when it spills over the waistline of pants or skirts in a manner that resembles the top of a muffin spilling over its paper casing. Muffin-tops are generally considered undesirable.
Muffin-top指腰间被裤子或裙子腰线勒出来下垂的赘肉，看上去像玛芬蛋糕顶部溢出纸托的样子，由此得名。一般来说，没有人喜欢自己腰间有那一圈赘肉的。
Muffin-top originated as Australian slang in mid-2003, but has since become popular in other English-speaking countries. It may have been first popularized by the Australian television show Kath & Kim.
Muffin-top这个说法2003年作为俚语出现在澳大利亚，后来在各个英语国家均被接受。最开始将其普遍传播的应该是澳大利亚电视节目《凯斯和吉姆》。