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1. noun Someone who promotes or endorses some product, service, event, etc., in an extravagant, misleading, or insincere manner in return for money or some other self-interest. Originally referred to someone who poses as a satisfied customer in order to lure other people into engaging in a swindle or con. It's sad seeing such a respectable actor become a shill for a used car company. I'm not a shill for their amusement park or anything, I just genuinely think everyone would love going there!
2. verb To promote, endorse, or advertise something in such a manner. It's part of my contract to shill for this movie, even though I know that it is a total piece of garbage. I never trust anyone shilling for alternative medicines or miracle cures.
1. n. someone planted in the crowd to urge others to buy something, participate in something, etc. The guy’s a shill! Don’t fall for this setup!
2. in. to advertise for something; to give a sales pitch for something. Four stars of an old television show were there shilling for a major computer firm.