be a square peg

be a square peg (in a round hole)

To act or think differently than most people, especially when it causes one to not fit in or be comfortable with others or in a particular situation. It only took three months to realize I was a square peg in a round hole at the firm. I guess I just don't buy into the whole corporate hierarchy of modern business. When the man in the fancy suit walked into the biker bar, it was obvious that he was a square peg.
See also: peg, round, square
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

be a square ˈpeg (in a round ˈhole)

(British English, informal) not fit well or easily into an organization, a job, etc. because you are different: I don’t have the right personality for the job. I feel like a square peg in a round hole. OPPOSITE: in your element
See also: peg, square
Farlex Partner Idioms Dictionary © Farlex 2017
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