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Verb: chuck up
Usage: Brit (N. Amer: upchuck)
  1. Eject the contents of the stomach through the mouth
    "After drinking too much, the students chucked up";
    - vomit, vomit up, purge, cast, sick, cat, be sick, disgorge, regorge, retch, barf, spew, spue [archaic], chuck, upchuck [N. Amer], honk, regurgitate, throw up, vom [informal], keck, hurl, chunder [Brit]

Derived forms: chucking up, chucked up, chucks up

Type of: egest, eliminate, excrete, pass