shill bidding - definition and synonyms

noun [uncountable] 

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/ˈʃɪl ˌbɪdɪŋ/
  1. the practice of bidding for something that you are selling in an auction in order to increase the selling price

    Shill bidding is against the law.

derived words

shill bid

noun [countable]
singularshill bid
pluralshill bids

In the book he describes how he and his cohorts placed shill bids on hundreds of eBay auctions over the course of a year.

shill bidder

noun [countable]
singularshill bidder
pluralshill bidders