beclap vs pat on the back

beclap

verb

  • To clap for; to applaud. 

  • To grasp, insnare, ensnare, catch, to trap suddenly, to grab suddenly. 

pat on the back

verb

  • To praise or congratulate. 

noun

  • Praise, congratulations. 

How often have the words beclap and pat on the back occurred in a corpus of books? (source: Google Ngram Viewer )