hang out (one's) shingle

hang out (one's) shingle

To start a business of some kind. I'd be glad to take on your case—after years at that law firm, I'm finally hanging out my shingle.
See also: hang, out, shingle

hang out one's shingle

Open an office, especially a professional practice, as in Bill's renting that office and hanging out his shingle next month. This American colloquialism dates from the first half of the 1800s, when at first lawyers, and later also doctors and business concerns, used shingles for signboards.
See also: hang, out, shingle

hang out your shingle

begin to practise a profession. North American
The main and oldest sense of shingle is ‘a wooden roofing tile’, but in the early 19th century the word developed the more general sense of ‘a piece of board’, while in the USA it also acquired the particular meaning ‘a small signboard’. Literally, hanging out your shingle refers to hanging up a sign that advertises your profession.
See also: hang, out, shingle