Definitions for "Bid Siphoning"
The practice of contacting bidders and offering to sell them the same item they are currently bidding on, thus drawing bidders away from the legitimate seller's auction.
The practice of drawing bidders away from a seller's auction by contacting them and offering the same item for purchase elsewhere.
When a third party emails bidders in a running auction and tries to sell them a similar item for a price lower than the current high bid.