lose one's lunch

idiom

Definition of lose one's lunch

US slang
: to throw up : vomit I felt like I was about to lose my lunch.

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“Lose one's lunch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lose%20one%27s%20lunch. Accessed 24 Sep. 2020.

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