·noun In crayon drawing, the use of the stump.
II. Scumbling ·noun The color so laid on. Also used figuratively.
III. Scumbling ·p.pr. & ·vb.n. of Scumble.
IV. Scumbling ·noun A mode of obtaining a softened effect, in painting and drawing, by the application of a thin layer of opaque color to the surface of a painting, or part of the surface, which is too bright in color, or which requires harmonizing.