do a slow burn vs pout

do a slow burn

verb
  • To experience a gradually increasing feeling of anger or frustration; to slowly burn. 

pout

verb
  • To be or pretend to be ill-tempered; to sulk. 

  • To shoot poults. 

  • To push out one's lips. 

  • To thrust itself outward; to be prominent. 

  • To say while pouting. 

noun
  • A fit of sulking or sullenness. 

  • One's facial expression when pouting. 

  • Any of various fishes such as the hornpout (Ameiurus nebulosus, the brown bullhead), the pouting (Trisopterus luscus) and the eelpouts (Zoarcidae). 

How often have the words do a slow burn and pout occurred in a corpus of books? (source: Google Ngram Viewer )