When a couple or two people are having sex and the receiver eats a muffin while the giver put their hands on the receiver's neck and chokes them. This causes the receiver to "double choke" as they are choking from the muffin and the giver's hands at the same time while receiving pleasure below.
"I was getting muffin topped during sex! Dammit Jon!"
In some cases, where someone is wearing tight jeans of leggings and their skin\fat spills over the edge like a muffin over a case
In other cases, it is where a girl usually year 7 has their hair up in a floppy messy bun that looks like a muffin
Eww that gels gotta muffin top
Look at dat gel wiv the muffin top on her head
The fat bit that overflows over the top of your pants. Despite what the other definitions are trying to tell you, muffin tops are adorable, and if you have one: I love you.
*someone posts a pic of a chubby girl*
"She has a muffintop, very soft looking, would hug her."
The fat bulge resulting from a person (usually women) who wears pants that are too tight along with a halter/tube top.
That fat bulge looks somewhat like the top of a muffin, hence the name.
"I guess that fat chick used the money on an extra Big Mac instead of bigger pants and a whole shirt."
Respectable woman: "What the hell is that fat bitch thinking going out in public like that?!"
I would use an example with "muffin-top" in it, but what the hell type of urban slang is muffin-top? Corporate America is not urban