repel vs tug

repel

verb
  • To drive back (an assailant, advancing force etc.). 

  • To ward off (a malignant influence, attack etc.). 

  • To cause repulsion or dislike in; to disgust. 

  • To reject, put off (a request, demand etc.). 

  • To save (a shot). 

  • To force away by means of a repulsive force. 

tug

verb
  • To pull or drag with great effort. 

  • To masturbate. 

  • To tow by tugboat. 

  • To pull hard repeatedly. 

noun
  • A dog toy consisting of a rope, often with a knot in it. 

  • A trace, or drawing strap, of a harness. 

  • A tugboat. 

  • An iron hook of a hoisting tub, to which a tackle is affixed. 

  • A sudden powerful pull. 

  • An act of male masturbation. 

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