Here to help with all those who dont know:
definition:
Long a staple of playgrounds, after-school snacks, college dorms, and the local diner, a Fluffernutter is a wonderful concoction of Marshmallow Fluff and peanut butter in a delightfully tasty sandwich!
A picture of the notorius fluff (as displayed by my 7yr old):
Still want to know more? try marshmallowfluff dot com