flex vs kink

flex

verb
  • To bend something. 

  • To move part of the body using one's muscles. 

  • To repeatedly bend one of one's joints. 

  • To flaunt one's superiority. 

  • To tighten the muscles for display of size or strength. 

noun
  • The act of flaunting something; something one considers impressive. 

  • Any flexible insulated electrical wiring. 

  • Flexible ductwork, typically flexible plastic over a metal wire coil to shape a tube. 

  • An act of flexing. 

  • A point of inflection. 

  • Flexibility, pliancy. 

kink

verb
  • To form a kink or twist. 

  • To laugh loudly. 

  • To be formed into a kink or twist. 

  • To gasp for breath as in a severe fit of coughing. 

noun
  • A convulsive fit of coughing or laughter; a sonorous indraft of breath; a whoop; a gasp of breath caused by laughing, coughing, or crying. 

  • A positive 1-soliton solution to the sine-Gordon equation. 

  • A tight curl, twist, or bend in a length of thin material, hair etc. 

  • An unreasonable notion; a crotchet; a whim; a caprice. 

  • A difficulty or flaw that is likely to impede operation, as in a plan or system. 

  • Peculiarity or deviation in sexual behaviour or taste. 

  • A person with peculiar sexual tastes. 

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