Definition of know what hit one
- I didn't know what hit me—suddenly I just felt so dizzy.
- The company came out with an entirely new line of products last year, and their competitors never knew what hit them.
: to perceive directly : have direct cognition of
: to have understanding of
: to recognize the nature of : discern
used as an interrogative expressing inquiry about the identity, nature, or value of an object or matter
often used to ask for repetition of an utterance or part of an utterance not properly heard or understood
: in what respect : how
used as an interrogative expressing inquiry about the identity, nature, or value of a person, object, or matter
: how remarkable or striking for good or bad qualities
: to reach with or as if with a sudden blow
: to come in quick forceful contact with
: to strike (something, such as a ball) with an object (such as a bat, club, or racket) so as to impart or redirect motion
: an act or instance of striking or forcefully coming in contact with someone or something : an act or instance of hitting or being hit
: a stroke of luck
: a great success
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