The recurring Gumby characters share the surname Gumby. They are usually referred to collectively as Gumbys, with individual appearances often identified as Mr. Gumby or simply a Gumby.
Gumbys are deliberately exaggerated figures of limited intelligence and vocabulary. Their speech is loud, halting and indistinct, and their physical appearance is defined by wire-rimmed glasses, toothbrush moustaches, rolled-up sleeves and trouser legs, Wellington boots, and a knotted white handkerchief worn on the head.
The character first appeared in the early episodes of Monty Python's Flying Circus and became associated with catchphrases such as “My brain hurts!” and repeated cries of “Hello!” and “Sorry!” The name is linked to the characters' gumboots, a British term for Wellington boots.
The surname is not part of a tightly consistent fictional family history. Flying Circus often changed names and continuity from sketch to sketch, so the quiz answer refers to the character label shared by the recurring type, not a fully developed genealogy.