A simple mannequin used by tailors to fit clothes

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.

Third-person singular simple present indicative form of dummy up

present participle of dummy up

A flat wooden life-size figure painted and shaped in silhouette.

(video games) To remove (a feature, subplot, item, or character) from a video game.

(informal, chiefly Australia) To overreact (as an adult) to a situation, in an angry and childish manner.

(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.

(slang) To feign an epileptic attack.

A railroad car containing its own steam power or locomotive.