shoot one’s cookies
shoot (one's) cookies
slang To vomit, especially violently or profusely. With the way that boat was rocking back and forth, I felt like I was going to shoot my cookies over the side at any minute. My roommate came back from his birthday celebrations and promptly started shooting his cookies into the trash can.
shoot one’s cookiesand shoot one’s breakfast and shoot one’s supper
tv. to empty one’s stomach; to vomit. I shot my supper, and I was glad to get rid of it. Whoa! I think I’m gonna shoot my cookies!