Main entry: dirty word, vulgarism, obscenity, filth, smut
Definition: an offensive or indecent word or phrase
Main entry: nastiness, filth, filthiness, foulness
Definition: a state characterized by foul or disgusting dirt and refuse
Main entry: dirt, soil, stain, filth, grease, grime, grunge
Definition: the state of being covered with unclean things
Main entry: crud, filth, skank
Definition: any substance considered disgustingly foul or unpleasant