lifter vs slough shark

lifter

noun
  • A spatula. 

  • An ionocraft. 

  • A delivery that bounces well off the pitch. 

  • Someone or something that lifts or assists in lifting. 

  • A thief. 

  • A weightlifter. 

  • A filter that operates on a cepstrum. 

slough shark

noun
  • northern pike 

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