A clumsy or inept person

एक बेतुका या अक्षम व्यक्ति

English Usage: He was such a stumblebum that he tripped over his own feet during the dance.

Hindi Usage: वह इतना बेतुका था कि नृत्य के दौरान अपने पैरों पर ठोकर खा गया।