knock oneself out
Definition of knock oneself out
1 : to cause oneself to become unconscious He hit his head against the table when he fell and knocked himself out.
2 informal : to make oneself very tired by doing work I knocked myself out to get the job done on time.
3 US —used to tell someone to go ahead and do something “Do you mind if I use this exercise machine first?” “Knock yourself out.”
Word by Word Definitions
: to strike something with a sharp blow
: to collide with something
: a sharp blow : rap, hit
: a severe misfortune or hardship
: setback, reversal
: one's normal, healthy, or sane condition or self
: in a direction away from the inside or center
: from among others
: eject, oust
: to identify publicly as being such secretly
: to identify as being a closet homosexual
: used as a function word to indicate an outward movement
: situated outside : external
: situated at a distance : outlying
: one who is out of office or power or on the outside
: an act or instance of putting a player out or of being put out in baseball
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