axle grease(n = noun.substance) - a thick heavy grease used to lubricate axles;
is a kind of grease, lubricating oil

axle, axle bar, axle box, axle guard, dead axle, driving axle, elbow grease, goose grease, grease, grease cock, grease cup, grease gun, grease monkey, grease one's palms, grease the palm, grease the wheels, hair grease, live axle, wheel and axle, wool grease