(third-person singular simple present dummies up, present participle dummying up, simple past and past participle dummied up)
- To make a mock-up or prototype version of something, without some or all off its intended functionality.
- The carpenters dummied up a set of simple props for the rehearsals.
- (informal) To suddenly stop talking
- When he couldn't think of any more good lies, he just dummied up.
- Everyone was discussing the new teacher, but when she entered the room they all dummied up.