[stuhm-buh l-buhm]

noun Informal.

a clumsy, second-rate prizefighter.
a clumsy, incompetent person.

Origin of stumblebum

First recorded in 1930–35; stumble + bum1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Word Origin and History for stumblebum

"alcoholic derelict," 1932, from stumble + bum (n.2).

Online Etymology Dictionary, © 2010 Douglas Harper