dummy up
Refuse to talk
Dummy up has two distinct meanings.
The first is to keep silent, to refuse to talk: When the cops started asking questions, he dummied up.
The second is to create a rough version or mockup: We dummied up a prototype to show the investors.
Context usually makes the intended sense clear.
Abruptly stop speaking
- shut upDemand for silence
- keep mumRemain silent intentionally
- hold tongueDeliberately not speak
- zip itCommand to stop speaking
button up · stonewall · stay quiet · keep quiet · say nothing · withhold · tight-lipped · close-mouthed
clam up
Abruptly stop speaking
- shut upDemand for silence
- keep mumRemain silent intentionally
- hold tongueDeliberately not speak
zip it · button up · stonewall · stay quiet · keep quiet · say nothing · withhold · tight-lipped · close-mouthed · uncommunicative
fabricate
Invent or manufacture
- falsifyDistort the truth
- fakeNot the real thing
- counterfeitFraudulent imitation
forge · concoct · invent · make up · cook up · trumped-up · sham · phony · bogus · mock-up
dummy upcooperate
Work jointly with others
testify · name names · implicate · incriminate · turn state's evidence
dummy upcooperate
Work jointly with others
come forward · testify · bear witness · inform · collaborate
dumb, dummy, dummies, dumber, dumbest, dumbness, dumbly, dummied, dummying