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the practice of buying shares, generating favourable publicity about them, especially on the internet, then selling them when the price accordingly rises


: Investigators reported two ”pump-and-dump” schemes in which Canadian companies were heavily hyped on computer bulletin board services. Their stock prices tripled or more in a short time, then collapsed (1990s+)


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    noun 1. a chamber of a pump in which a piston operates.

  • Pumped and dumped

    adjective phrase Exploited, then rejected; used and discarded: Poor Emmett is feeling ”pumped and dumped” (1990s+)

  • Pumped-storage

    noun 1. a system for generating hydroelectric power for peak periods by pumping water from a lower to a higher reservoir during low-demand periods and then releasing it during peak periods. noun 1. (in hydroelectric systems) a method of using power at a period of low demand to pump water back up to a high […]

  • Pumpernickel

    [puhm-per-nik-uh l] /ˈpʌm pərˌnɪk əl/ noun 1. a coarse, dark, slightly sour bread made of unbolted rye. /ˈpʌmpəˌnɪkəl/ noun 1. a slightly sour black bread, originating in Germany, made of coarse rye flour n. “dark rye bread,” 1756, pompernickel, from German (Westphalian dialect) Pumpernickel (1663), originally an abusive nickname for a stupid person, from pumpern […]

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