thickly covered with ingrained dirt or soot; "a miner's begrimed face"; "dingy linen"; "grimy hands"; "grubby little fingers"; "a grungy kitchen"

suggestive of or tending to moral looseness; "lewd whisperings of a dirty old man"; "an indecent gesture"; "obscene telephone calls"; "salacious limericks"

earthy and sexually explicit; "a raunchy novel"