- to cheat (a house buyer) by raising the price, at the time a contract is to be signed, over the amount originally agreed upon.
- an act of gazumping.
Origin of gazump
First recorded in 1925–30; earlier gazoomph to swindle, argot word of uncertain origin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- to raise the price of something, esp a house, after agreeing a price verbally with (an intending buyer)
- (tr) to swindle or overcharge
- the act or an instance of gazumping
C20: of uncertain origin