dread vs piss one's pants

dread

verb
  • To fear greatly. 

  • To be in dread, or great fear. 

  • To style (the hair) into dreadlocks. 

  • To anticipate with fear. 

noun
  • A Rastafarian. 

  • Great fear in view of impending evil; fearful apprehension of danger; anticipatory terror. 

  • Somebody or something dreaded. 

  • Reverential or respectful fear; awe. 

adj
  • Terrible; greatly feared; dreaded. 

piss one's pants

verb
  • To be extremely frightened. 

  • To laugh uncontrollably. 

  • To wet oneself; to urinate in one's own clothes while they are being worn. 

How often have the words dread and piss one's pants occurred in a corpus of books? (source: Google Ngram Viewer )