turn in grave
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Related to turn in grave: turn in one's grave, worse for wear, spin in grave, roll over in your grave
turn (over) in (one's) grave
To (hypothetically) show enormous anger, disfavor, or regret for someone's actions or something that happens after one has died. That is, if someone were still alive, they would be greatly upset, angered, or disgusted by what has happened. I can't believe you're using our employees' pension payments to prop up a Ponzi scheme. The founder of this once-great company would be turning in his grave to see its directors stoop so low. Your poor mother would turn over in her grave if she heard the horrible things you were saying about your sister. I can't believe you wrecked your grandfather's prized truck. That's enough to make him turn over in his grave!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
turn (over) in one's graveand roll (over) in one's grave
Fig. to show enormous disfavor for something that has happened after one's death. If our late father heard you say that, he'd turn over in his grave. Please don't change the place around too much when I'm dead. I do not wish to be rolling in my grave all the time.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.