saw tooth vs toothypeg

saw tooth

noun

  • A cutting bit of a saw. 

adj

  • Describing a function or waveform that consists of repeated triangular transitions when graphed. 

  • Shaped like a saw tooth. 

toothypeg

noun

  • tooth 

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