A situation where a member posts an extremely high bid on specific auctions to protect an earlier bidder or the seller's interests.
A scam in which two bidders place unreasonably high bids on an item to scare off other bidders. Then, at the last moment, these high bidders retract their bids, giving the item to a distant, third place bidder also working with them.
slang] On an online auction, when two bidders pull the following scam: one bids low, the other very high, which discourages other bidders. Seconds before the auction ends, the high bid is retracted and the low bidder wins by default.