The "Chum Burger" is a type of burger served at the fictional Chum Bucket restaurant from the animated TV show SpongeBob SquarePants. It is known for being an unappealing alternative to the Krabby Patty, the signature burger from the show's rival restaurant, the Krusty Krab. The Chum Burger is made primarily of chum, which in the context of the show is a mix of fish guts and other unappetizing ingredients.
If referring to a real-world Chum Burger, there are burger brands or restaurants named "Chum Burgers" as well, such as a burger place that has won Burger Master awards in some years.
Please specify if the interest is in the fictional SpongeBob SquarePants Chum Burger or a real-world establishment.