Originally an urban contractaction for "...worth of gas", it has since come to mean a gas station that does not accept credit cards for "pay at the pump" transactions, you must go in to pay for it. Many (not all) woofa gas stations are cash only, no credit cards accepted at all. Most gas stations that accept credit cards allow you to pay at the pump. Most woofa gas stations are generic independents, not showing any brand name.

When you eat dirt for the first time and leave your family to build a shack in the woods