The term 'toothy fish' refers to two different species of fish: the GAR (3 letters) and the Piranhas (8 letters). The GAR is a long, slender fish that can grow up to 10 feet in length and is found in freshwater rivers and lakes in North America. It has a long, sharp snout with numerous sharp teeth. The Piranha is a small, carnivorous fish found in South American rivers and streams. It has a large mouth filled with razor-sharp teeth, which it uses to feed on other fish and aquatic animals. Both species are known for their aggressive behavior and sharp teeth, making them popular among anglers.