We found 5 dictionaries that define the word toss one's cookies:

General (4 matching dictionaries)

1. toss one's cookies: Merriam-Webster
2. toss one's cookies: Oxford Learner's Dictionaries
3. toss one's cookies: Wiktionary
4. toss one's cookies, toss ones cookies: Dictionary.com

Slang (1 matching dictionary)

5. American-Australian Slang Dictionary (No longer online)

Definitions from Wiktionary (toss one's cookies) ▸ verb:  (slang) To vomit. ▸ Words similar to toss one's cookies ▸ Usage examples for toss one's cookies ▸ Idioms related to toss one's cookies ▸ Wikipedia articles (New!) ▸ Words that often appear near toss one's cookies ▸ Rhymes of toss one's cookies ▸ Invented words related to toss one's cookies