Stuffed Shirt Meaning

Example : 1914, Samuel Hopkins Adams, The Clarion, ch. 30:  "Don't you come the high-and-holy on me. You and your smooth, big, phony stuffed-shirt of a father."1952, "Medicine: Mind Matters," Time, 26 May:  Dr. Laughlin was the only one in a movie party who detested the second male lead—"I regarded him as overserious, pedantic, a stuffed shirt."2000, Frederik Balfour, "Return of a Hong Kong Highflier ," BusinessWeek, 10 July:  The opportunistic style that was the bank's trademark still prevails and continues to attract talented young Hong Kongers looking for an alternative to the stuffed-shirt culture of most U.S. and European banks.