Use "dummy up" in a sentence

1. When questioned, he invariably dummy up.

2. If anyone asks you, just dummy up.

3. Of course, such synergistic Bilge is commonplace, as is the tendency to dummy up on any topic that the parent company might want stifled.: Tighter rules on oil emissions in Bilge water, anti-fouling paints and recycling are also likely to follow.: Other discharges include 37,000 gallons of oily Bilge water and 15 gallons of toxic waste from dry-cleaning, painting and photograph-processing.