barf vs bowk

barf

verb

  • To vomit. 

  • Of a system: to fail. 

noun

  • Vomit. 

intj

  • An expression of disgust. 

bowk

verb

  • To vomit. 

  • To belch, to burp. 

How often have the words barf and bowk occurred in a corpus of books? (source: Google Ngram Viewer )