To smear with soft adhesive matter; plaster; cover or coat with mud, slime, or other soft substance.To soil; defile; besmear.Hence To paint ignorantly, coarsely, or badly.To give a specious appearance to; patch up; disguise; conceal.To dress or adorn without taste; deck vulgarly or ostentatiously; load as with finery.n. A cheap kind of mortar; plaster made of mud.n. A viscous, adhesive application; a smear.n. A daubing or smearing stroke.n. A coarse, inartistic painting.n. In coloring enameled leather, a thick black substance put on as a first coat to fill the surface in preparation for the final coloring.