bumble (v.)
"to flounder, blunder," 1530s, probably of imitative origin. Related: Bumbled; bumbler; bumbling. Bumble-puppy (1801) was a name for various outdoor sports and games.
Bumble
"self-important petty official," 1856, from the name of the fussy, pompous, stupid beadle in Dickens' "Oliver Twist." Related: Bumbledom.