Noun

1. Soft, moist earth or clay, having an adhesive quality; viscous mud; any substance of a dirty nature, that is moist, soft, and adhesive; bitumen; mud containing metallic ore, obtained in the preparatory dressing.
2. Any mucilaginous substance; or a mucus-like substance which exudes from the bodies of certain animals, such as snails or slugs.

Verb

1. To coat with slime.
2. To besmirch or disparage.