lose one's lunch

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lose one's lunch (third-person singular simple present loses one's lunch, present participle losing one's lunch, simple past and past participle lost one's lunch)

1. (slang) To vomit, throw up.
   • 2005, Sean Dooley, The Big Twitch, Sydney: Allen and Unwin, page 235:

     Exactly one minute later, the first of the passengers lost their lunch over the side.