Definitions

1. noun

A golfer who slices the ball, causing it to curve sharply to the right (in the case of a right-handed golfer).

“He’s a terrible blunker and always hits the ball into the woods.”

2. noun

A person who is incompetent or inept, especially in a particular activity or skill.

“The new intern turned out to be a blunker at using the company’s software.”