stumblebum
/ˈstʌmblbʌm/Definitions
1. noun
A clumsy or awkward person, often used to describe someone who is accident-prone or has poor coordination.
“He’s such a stumblebum, always tripping over his own feet.”
2. noun
A person who stumbles or makes mistakes in a particular activity or situation.
“The rookie quarterback was a stumblebum in the first game, throwing two interceptions.”