Stick Up One's Ass Meaning

Example : 2009, Don Nigro, Gorgons and Other Plays, ISBN 9780573696398, p. 47 (Google preview):  My parents . . . had been decently off at some time in the past, but all that remained by the time I came along was a certain New Englandy Puritan sense of respectability. . . . I've inherited it. As much as I've tried to fight it, when you're born with a stick up your ass, you die with a stick up your ass.2014, Jay Giles, Moneymoon's End, ISBN 9781575458847, ch. 1 (Google preview):  President Adrian Kantor, whom . . . Sandy often referred to as a "prissy do-gooder with a stick up his ass," credited Sanderson & Dunn with his swift ascent from the House to the Senate to the White House.2015, Tara Mills, Going Solo, ISBN 9780990308447, ch. 2 (Google preview):  He was too straight-laced to appreciate piercings and tattoos. If he could manage to keep future comments to himself, she wouldn't have any reason to mention the stick up his ass.