You know the type of man that F.U.P.A. refers to...the guy that has a huge gut, yet for some reason decides to wear his highrise pants belted in the middle of the doughy spare tire that makes up the enormous bulge that starts under the guy's man-boobs and seems to end somewhere in the crotch area.
Note: Male with FUPAs are typically much heavier than their female counterparts; thus making the male FUPA much more pronouced and therefore funny than the female version.
A F.U.P.A is an abbreviation for Fat Upper Pussy Area. Thus, meaning when an morbedly obese woman, or just a plump women has a large vagina that seems to bulge outwards, or even look like another stomach/penis.