(n.) 1. a terribly physically
obese individual. Also operates in a relative sense -- a
thick or chunky person may deserve the appellation when compared to a more slender individual. Generally, a jovial way of describing a
fatass. 2. description of a fathead, a jobbernowl, this is the more caustic and widely applicable meaning -- esp. effective for an obtuse, arrogant type.
3. "lumpkins" may be replaced by a proper last name, see example 2.