whank vs writhe

whank

verb
  • To beat; to thrash; to whip; to lash. 

  • To cut, especially to cut off a large portion. 

noun
  • A strike with the fist; a blow; a knock. 

  • A large portion, slice or lump. 

writhe

verb
  • To extort. 

  • To twist bodily; to contort one's self; to be distorted. 

  • To twist, wring (something). 

  • To contort (a part of the body). 

noun
  • A contortion. 

  • The number of negative crossings subtracted from the number of positive crossings in a knot 

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