safety pin vs skewer

safety pin

noun
  • A pin in the form of a clasp, which has a guard to cover the sharp point; used to join two pieces of fabric, etc., together temporarily. 

  • The pin of a hand grenade, which prevents accidental detonation. 

skewer

noun
  • A long pin, normally made of metal or wood, used to secure food during cooking. 

  • That which skews something. 

  • A scenario in which a piece attacks a more valuable piece which, if it moves aside, reveals a less valuable piece. 

  • Food served on a skewer. 

verb
  • To impale on a skewer. 

  • To attack a piece which has a less valuable piece behind it. 

  • To severely mock or discredit. 

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