(business) A bid made at an auction, by a dummy bidder acting in collusion with the auctioneer or vendor, designed to deceive genuine bidders into paying more.

simple past tense and past participle of dummy

simple past tense and past participle of dummy up

To make a mock-up or prototype version of something, without some or all off its intended functionality. / (informal, sometimes imperative) To suddenly stop talking; shut up.

A simple mannequin used by tailors to fit clothes

Third-person singular simple present indicative form of dummy up

present participle of dummy up

(idiomatic) A trial or practice before the real attempt.

simple past tense and past participle of dummy out

Third-person singular simple present indicative form of dummy out