The term "Yellowbelly" can refer to a few different things, but it is most commonly associated with a type of fish known as the Yellowbelly Perch. This freshwater fish is found in various lakes and rivers, particularly in regions of North America. It is recognized for its distinctive yellowish belly and is popular among anglers for its tasty flesh. In a different context, "Yellowbelly" can also be used as a slang term to describe someone who is cowardly or timid. This usage is often seen in informal conversations and can carry a derogatory connotation. The origin of this term is not entirely clear, but it has been part of colloquial language for many years.