gazumping Definition

gazump
verb

gazumped, gazumping
1. colloq
Said of someone selling a property: to raise the price that has already been verbally agreed with (a prospective buyer), usually because someone else has offered a higher price.

Derivative: gazumper
noun

Derivative: gazumping
noun

Etymology: 1970s in this sense; 1920s as gazoomph, meaning ‘swindle': from Yiddish gezumph to swindle.