kink vs true bug

kink

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

  • 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. 

  • 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. 

verb
  • To laugh loudly. 

  • To be formed into a kink or twist. 

  • To form a kink or twist. 

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

true bug

noun
  • Any of various insects of the order Hemiptera and in particular of the suborder Heteroptera, that are wingless or have two pairs of wings, and have mouthparts adapted for piercing and sucking. 

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