👉 The term "headfish" is a common name for an unharvested, immature fish that may have been caught in a stream or lake. Headfish are often referred to as "pork heads" due to their size and appearance, but they are not typically considered by scientists or conservationists as being of any significance or value. Headfish can be found in many parts of the world, including freshwater lakes and rivers, and are often used for food, bait, and other purposes.