Definition:

confuse; perplex; fluster

Example:

"Irish can bumfuzzle any team" – headline about the Notre Dame "Fighting Irish" football team, Chicago Tribune, October 27, 2002

About the Word:

Bumfuzzle may have begun as dumfound, which was then altered first into dumfoozle and then into bumfoozle. Dumfound (or dumbfound) remains a common word today, but bumfuzzle unfortunately is extremely rare.