Sekirov Dictionary

knock oneself out

verb1

•
(informal) To go ahead; to do as one pleases; to enjoy oneself; to endeavor very hard at a task.
- "These cookies are my favorite! Can I have some?" "Sure, knock yourself out." (i.e., have as many as you want)
- (sarcastically, indicating lack of interest) "I'm going to the store." / "Knock yourself out."

forms

knocked oneself out · knocking oneself out · knocks oneself out

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