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boiler room

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noun

a room in a building, ship, etc., that houses one or more steam boilers.
Slang.
  1. a place where illicit brokers engage in high-pressure selling, over the telephone, of securities of a highly speculative nature or of dubious value.
  2. any room or business where salespeople, bill collectors, solicitors for charitable donations, etc., conduct an intensive telephone campaign, especially in a fast-talking or intimidating manner.

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RELATED WORDS

con, flimflam, hustle, racket, rip-off, sting, swindle, Ponzi, bait-and-switch, bunko
Related formsboil·er-room, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for boiler room

boiler room

noun

any room in a building (often in the basement) that contains a boiler for central heating, etc
the part of a steam ship that houses the boilers and furnaces
the room or department in which the real work of an organization goes on unseen
(chiefly US) an office used by a team of telephone salespeople, esp of stocks and shares, operating under high pressure
  1. a fraudulent scheme in which investors are encouraged to buy non-existent, worthless, or over-priced shares
  2. (as modifier)a boiler-room scam
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012