from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun finance A form of financial fraud where the fraudster buys stocks cheaply, generates artificial excitement about those stocks to create a temporary price increase, then sells the stocks before the price goes back down
  • noun slang 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.
  • verb To use a breast pump and then discard the milk, typically because one has had an infection, or been drinking alcohol.
  • verb transitive, slang To have have sex with a partner on a single occasion, without intention or prospects of further contact, or engaging in a serious relationship.


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  • The (largely) penny stock ploy that attempts to drive up the price of a highly speculative and volatile stock so that one or more holders with insider knowledge might entice foolish or uninformed investors to "buy high" from the better-informed pumpers so that the latter can unload their near-worthless shares of a dismal failure or soon-to-fail company to their personal financial advantage. Pumpers and dumpers are the source of a good percentage of unsolicited facsimiles that some office FAX machines are plagued with.

    October 2, 2009