guilty as sin

English

Pronunciation

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Adjective

guilty as sin (not comparable)

1. (simile, colloquial) Unquestionably guilty.
   • 1973 November 12, “The Jury of the People Weighs Nixon”, in Time:

     Joe Feinberg, who supplied the decorative ceramic tiles for the Key Biscayne homes of both the President and Bebe Rebozo, thinks Nixon is "guilty as sin."