plip vs sizzle

plip

verb
  • To make the sound of liquid hitting a hard surface. 

  • To lock or unlock using a remote control locking device. 

noun
  • A light sound or action like liquid hitting a surface. 

sizzle

verb
  • To make the sound of water boiling on a hot surface. 

  • To be exciting or dazzling. 

  • To cook (something) in a manner which causes that sound. 

noun
  • Zing, zip, or pizazz; excitement. 

  • The process of being cooked which involves that sound. 

  • The sound of water boiling on a hot surface. 

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