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Meaning of gazump

ga•zump

Pronunciation: (gu-zump'), [key]
— Brit. Slang. Brit. Slang.
—v.t.
  1. to cheat (a house buyer) by raising the price, at the time a contract is to be signed, over the amount originally agreed upon.
—n.
  1. an act of gazumping.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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