smut

Noun

• creative activity (writing or pictures or films etc.) of no literary or artistic value other than to stimulate sexual desire

• an offensive or indecent word or phrase

• any fungus of the order Ustilaginales

• destructive diseases of plants (especially cereal grasses) caused by fungi that produce black powdery masses of spores

• a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink

Verb

• affect with smut or mildew, as of a crop such as corn

• become affected with smut
  • the corn smutted and could not be eaten
    

• stain with a dirty substance, such as soot

• make obscene
  • This line in the play smuts the entire act
    

Related words

• Synonyms: 
  pornography , porno , porn , erotica , obscenity , vulgarism , filth , dirty word , smut fungus , carbon black , lampblack , soot , crock