vomit

Short definition from Wiktionary

Verb

1. 1
   To regurgitate or eject the contents of the stomach through the mouth; puke.
2. 2
   To regurgitate and discharge (something swallowed); to spew.
3. 3
   To eject from any hollow place; to belch forth; to emit.

Noun

1. 1
   The regurgitated former contents of a stomach; vomitus.
2. 2
   The act of regurgitating.
3. 3
   The act of vomiting.
4. 4
   Anything that is worthless; rubbish; trash.
5. 5
   That which causes vomiting; an emetic.