1Originally: a club foot or a foot with a deformity causing it to be unable to bend properly. Hence in later use: a person who is awkward, clumsy, or bumbling.
A bacterial infection and inflammatory reaction affecting birds and rodents, especially domestic fowl, resulting in swelling and abscess formation on the ball of the foot.
Bumblefoot is most commonly caused by the bacterium Staphylococcus aureus.
Mid 19th century; earliest use found in Morning Post (London). Probably from bumble + foot.