hang up (one's) shingle

hang up (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 up my shingle.
See also: hang, shingle, up

hang out/up your ˈshingle

(American English, informal) start to do business from your home, especially as a doctor or a lawyer: After graduating, he decided to hang out a shingle as a consultant.
See also: hang, out, shingle, up