MEANING: verb tr.:
1. To raise the price after accepting an offer from a buyer.
2. To offer a higher price to a seller on something that’s already being sold to another.
3. To preempt something, especially by questionable means.
4. To swindle.

ETYMOLOGY: Of uncertain origin, perhaps from Yiddish gezumph (to overcharge). Earliest documented use: 1928.

NOTES: Gazumping often happens in house sales. You have found your dream house, everything looks great, price negotiations are finished, inspection is done, you are ready to sign the contract, and then the seller receives a higher bid and gazumps: raises the price on you. It’s mostly seen in the UK. The term is often used in an extended sense: to trump something by the use of dubious methods. There’s a counterpart to today’s word. Meet it on Friday

GAZUP - what it does before it comes down, as it must

HAZUMP - decides whether things are dangerous or not

GAGUMP - baseball referee's been ordered not to say anything to anybody...