plural of grease gun

A gun that shoots BB-size pellets, typically using compressed air, or sometimes just a compressed spring.

nitrocellulose.

Diminutive of Thompson submachine gun

To order a gun to be fired; sometimes construed with dative (or to), implying that it is done as an honor, as a help (occasionally as a hostile demonstration).

(idiomatic) To cause a specific vehicle to accelerate; to open the throttle of an engine.

Alternative spelling of gunshy

(sports) To begin a race too soon, before the starting gun goes off. / (idiomatic) To act or begin too soon or without due caution.

A type of short range machine gun that is carried as a personal weapon and uses pistol ammunition.

A type of fully automatic firearm that fires bullets in rapid succession by a single action of the trigger and is capable of sustained fire.