Grandma's Apron
A female with a large, overlapping, hanging lower stomach or gut. In elderly females, the Apron is accentuated by wearing polyester pants. In younger women, the condition is highlighted when wearing yoga pants. Grandma's Apron has also been known as a BIF, the acronym for Butt In Front.
Carl loved elderly women especially those sporting a little Grandma's Apron. He made it a point to attend bingo night at the local senior center because it was a virtual smorgasbord of geriatrics.