Meaning

noun lean flesh of fish found in warm waters of southern Atlantic coast of the United States

noun important deep-bodied food and sport fish of warm and tropical coastal waters; found worldwide

originFrom Portuguese or Spanish pargo, from Latin phagrum, accusative of phager, from Ancient Greek φάγρος (phágros, “sea bream”). The similarity of porgy to paugie, especially in non-rhotic accents, may have reinforced both terms.

Etymology from Wiktionary, CC BY-SA 3.0