hump vs pump and dump

hump

verb
  • To have sex (with). 

  • 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. 

noun
  • A mound of earth. 

  • An act of sexual intercourse. 

  • 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. 

pump and dump

verb
  • To have sex with a partner on a single occasion, without intention or prospects of further contact, or engaging in a serious relationship. 

  • To use a breast pump and then discard the milk, typically because one has had an infection, or has been drinking alcohol. 

noun
  • A form of financial fraud where the fraudster buys stocks cheaply, generates excitement about those stocks to create a temporary price increase, then sells the stocks before the price goes back down. 

  • A situation where a person has sex with a partner on a single occasion, without immediate intention of further contact or pursuing a serious relationship. 

  • A situation where a woman uses a breast pump and then discards the milk, typically because she has had an infection, or has been drinking alcohol. 

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