shill
–noun
1. a person who poses as a customer in order to decoy others into participating, as at a gambling house, auction, confidence game, etc.
2. a person who publicizes or praises something or someone for reasons of self-interest, personal profit, or friendship or loyalty.
–verb (used without object)
3. to work as a shill: He shills for a large casino.
–verb (used with object)
4. to advertise or promote (a product) as or in the manner of a huckster; hustle: He was hired to shill a new TV show.
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[Origin: 1920–25; orig. uncert.]
n.
One who poses as a satisfied customer or an enthusiastic gambler to dupe bystanders into participating in a swindle.
v. shilled, shill·ing, shills
v. intr.
To act as a shill.
v. tr.
To act as a shill for (a deceitful enterprise).
To lure (a person) into a swindle.