In the context of the TV show SpongeBob SquarePants, chum is the signature ingredient in all of Plankton's menu items. In real life, chum is bait used by fishermen, made out of chopped fish
. It is made of the parts of fish and their blood, and fishermen use it to attract carnivorous creatures like sharks
. The Chum Bucket, where chum is served, is an unsuccessful fast food restaurant located right across the street from the Krusty Krab in a suburban area of Bikini Bottom
