brain fart vs inadvertence

brain fart

noun
  • An instance of absent-mindedness or forgetfulness. 

  • Something ill-considered and said or done impulsively. 

inadvertence

noun
  • An effect or result of inattention; an oversight or mistake from negligence. 

  • The state or quality of being inadvertent; inadvertency; heedlessness; carelessness; negligence. 

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