hump vs tug

hump

noun
  • An act of sexual intercourse. 

  • A mound of earth. 

  • A bad mood. 

  • A speed bump or speed hump. 

  • A wave that forms in front of an operating hovercraft and impedes progress at low speeds. 

  • A rounded fleshy mass, such as on a camel or zebu. 

  • A painfully boorish person. 

  • A deformity in humans caused by abnormal curvature of the upper spine. 

verb
  • To carry (something), especially with some exertion. 

  • To bend something into a hump. 

  • To shunt wagons / freight cars over the hump in a hump yard. 

  • To dry-hump. 

  • To have sex (with). 

tug

noun
  • An act of male masturbation. 

  • 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. 

verb
  • To masturbate. 

  • To tow by tugboat. 

  • To pull or drag with great effort. 

  • To pull hard repeatedly. 

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