Defines an incredible amount of the female population that decides that it is hot or sexy to be a fat, pregnant, slut on facebook. Can be related to both fat in figure or fat in personality if they are complete bitches anyways.
"The fuck?! That bitch is such a slagball. She posts really ugly duck-faced pics of herself half naked and now wants sympathy for getting pregnant."
by BakeaholicsAnon December 25, 2012
Get the Slagball mug.