Lately, it would be muffintop only bc they just added it to the Oxford English dictionary.
"A muffin top, in case you aren't aware, is that telltale bulge of unattractive belly flesh that oozes over one's tight pants or other attire, creating an obvious and embarrassing ridge, reminiscent of the pastry of the same name." - John Horgan
Not really telling people that they have muffintops but just spreading the good word, in the way someone might spread butter on a muffintop... the pastry.
HerbertTheHamster said:
Acetylcholinesterase. It's so common.
plebeian is a close second.
Ah yes the good old AChE... Are you a bio major or something?