(transitive) To grind (one's teeth) in pain or in anger. / (transitive) To grind between the teeth. / (figuratively) To clash together violently. / (Tyneside) To run away.

(obsolete) Lacking strength; weak. / (obsolete) Ungraceful in movement. / Difficult to carry, handle, manage or operate because of its size, weight, shape or complexity. / Badly managed or operated.

Of or pertaining to the Marquis de Sade (1740-1814), French novelist, or his writings, particularly sadomasochistic erotica.

plural of grass fire