A person who consumes marshmallows and blueberry pies to the point of excess. This often leads to numbing of the frontal lobes, therefore the term is often used to describe dillusional indivduals with an obsession for the afforementioned dessert items.
"That E-Rick is such a Pufferbelly, look at him eating all those fucking marshmallows and blueberry pies."
by Jayke Meoff October 22, 2007