Hamburgermeister was a member of the Jack in the Box Bunch.
He is depicted as a short elderly German man clad in lederhosen.
He has been shown working at at a Jack in the Box restaurant, presumably cooking up some of his prize-winning hamburgers.
Hamburgermeister was known for making bad jokes, along with his recurring catchphrase, "That's an old saying I just made up!"
He can also be very clumsy. In How Pain Helps Us, he drops a bowling ball on his feet twice.
There is some inconsistency regarding the character's name: "Der Hamburger Meister," "Hamburger Meister" (two words), and "Hamburgermeister" (one word) have all been shown in official sources.
Gallery
Beach ball. (Der Hamburger Meister)
Cleaning. (Hamburgermeister)
Cut-out figurines. (Hamburger Meister)
Making up a famous old saying.
Using a variant of his catchphrase.
Dropping a bowling ball on his foot.
Hamburgermeister in a commercial.