a hand-operated pump that resembles a pistol; forces grease into parts of a machine

a thick fatty oil (especially one used to lubricate machinery)

A portable firearm, such as a rifle or revolver, A device resembling a firearm or cannon, as in its ability to project something, such as grease or paint, under pressure or at great speed, One who is armed with or skilled in the use of a gun, intransitive verb_ To hunt with a gun, To open the throttle of (an engine) so as to accelerate, verb_ A verb used to express future action