vomiting gas

The missile landed on the concrete platform a few paces from Gus and began vomiting gas.

Smoke and vomiting gas right behind the concussion and his troops went in like gangbusters.

DM, also called adamsite, was developed during World War I. Vomiting gases are mainly used in riot control.

In the Vietnamese War, the United States used CN mixed with the vomiting gas DM.