Sniggles is a term used to describe a type of eel. It is a slang term for the European eel, which is a species of eel found in the Atlantic Ocean and Mediterranean Sea. The scientific name for this species is Anguilla anguilla. Sniggles are known for their long, slender bodies and their ability to migrate long distances. They are an important part of the food chain and are often used as bait in fishing.