Idiom for someone acting extremely out of character

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Track title: CC F Haydns String Quartet No 53 in D

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Chapters
00:00 Idiom For Someone Acting Extremely Out Of Character
01:28 Accepted Answer Score 26
01:55 Answer 2 Score 10
03:23 Answer 3 Score 3
03:41 Answer 4 Score 2
05:17 Answer 5 Score 1
06:27 Thank you

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Tags
#idiomrequests #allusion

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