drop one’s cookies

drop (one's) cookies

slang To vomit, especially violently or in great amount. With the way that boat was rocking back and forth, I felt like I was going to drop my cookies over the side at any minute.
See also: cooky, drop
Farlex Dictionary of Idioms.

drop one’s cookies

tv. to empty one’s stomach; to vomit. (see also toss one’s cookies.) If you feel like you’re going to drop your cookies, don’t do it on the carpet.
See also: cooky, drop
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • drop (one's) cookies
  • snap (one's) cookies
  • snap cookies
  • snap one’s cookies
  • cooky
  • grits
  • blow chunks
  • chow
  • buicks
  • blow (one's) doughnuts