A used female, no longer a virgin. Female with a degraded value. Characterized by lack of morals and values, and self respect because she has already been used for fucking.
Lisa isn't worthy of a good guy because the better guys out there don't want used meat.
Pre-packaged meat that is discounted because it has reached the "Sell by" date. Related to used bread store.
We're eating steak tonight; I got some used meat for $3 per pound.