piker vs skell

piker

noun
  • One who refuses to go out with friends, or leaves a party early; a spoilsport or "chicken". 

  • One who bets or gambles only with small amounts of money. 

  • A soldier armed with a pike, a pikeman. 

  • An amateur. 

  • A stingy person; a cheapskate. 

  • One who pikes (quits or backs out of a promise). 

  • A tramp; a vagrant. 

  • A bullock living in the wild. (Also used attributively.) 

skell

noun
  • A male suspicious person or crime suspect, especially a street person such as a drug dealer, pimp or panhandler. 

  • a homeless person, especially one who sleeps in the New York subway. 

verb
  • To fall off or fall over. 

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