What is the meaning of puke?

noun

• A person who is deemed to be despicable or contemptible.
  • usage: "only a rotter would do that"; "kill the rat"; "throw the bum out"; "you cowardly little pukes"; "the British call a contemptible person a `git'"
  • synonyms: rotter, dirty dog, rat, skunk, stinker, stinkpot, bum, crumb, lowlife, scum bag, so-and-so, git
• The matter ejected in vomiting.
  • synonyms: vomit, vomitus, barf

verb

• Eject the contents of the stomach through the mouth.
  • usage: "After drinking too much, the students vomited"; "He purged continuously"; "The patient regurgitated the food we gave him last night"
  • synonyms: vomit, vomit up, purge, cast, sick, cat, be sick, disgorge, regorge, retch, barf, spew, spue, chuck, upchuck, honk, regurgitate, throw up