fogger

Noun

 * 1) The outlet at the end of a hose which is designed to atomize, spray, or mist the contents flowing through the hose. Typical use includes gaseous materials such as nitrous oxide in automotive applications, as well as fuels for turbine engines.
 * 2) A device that generates artificial fog or smoke for stage performances.
 * 3)  One who fogs; a pettifogger.

Etymology 2
Perhaps from.

Noun

 * 1) A person employed to feed cattle.