Meaning of dummy up | Babel Free

Definitions

1. To make a mock-up or prototype version of something, without some or all off its intended functionality.
2. To make a fake version of something; to make a counterfeit.
3. To suddenly stop talking; shut up; to keep a secret; to refuse to talk.
   imperative, informal, sometimes

Examples

“The carpenters dummied up a set of simple props for the rehearsals.”

“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.”

CEFR level