lose one's lunch

lose (one's) lunch

slang To vomit. I felt like I was going to lose my lunch from seasickness out on that boat.
See also: lose, lunch
Farlex Dictionary of Idioms.

lose one's lunch

Vomit, as in When Anne saw the wound, she thought she'd lose her lunch. This expression does not usually refer to a specific meal and probably survives because of alliteration. [Colloquial; c. 1940]
See also: lose, lunch
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • lose (one's) lunch
  • lose one’s lunch
  • lose your lunch
  • lose (one's) v-card
  • lose ground to (someone or something)
  • lose it
  • lose it, to
  • lose face
  • lose face, to
  • give/lose ground