Definition of smear

• n. - To overspread with anything unctuous, viscous, or adhesive; to daub; as, to smear anything with oil.
• n. - To soil in any way; to contaminate; to pollute; to stain morally; as, to be smeared with infamy.
• n. - A fat, oily substance; oinment.
• n. - Hence, a spot made by, or as by, an unctuous or adhesive substance; a blot or blotch; a daub; a stain.