Raunchy
WordNet
adjective
(1) Thickly covered with ingrained dirt or soot
"A miner's begrimed face"
"Dingy linen"
"Grimy hands"
"Grubby little fingers"
"A grungy kitchen"
(2) Suggestive of or tending to moral looseness
"Lewd whisperings of a dirty old man"
"An indecent gesture"
"Obscene telephone calls"
"Salacious limericks"
(3) Earthy and sexually explicit
"A raunchy novel"