damned if I know

English

Alternative forms

Etymology

Ellipsis of I'll be damned if I know, alluding to the certainty and affirmation that the one making the statement does not know.

Interjection

damned if I know

  1. Used other than figuratively or idiomatically: see damned,‎ if,‎ I,‎ know.
  2. Used in response to a question in which the target person absolutely does not know the answer.
    Synonym: hell if I know