adj

• (by extension) Beyond all reason; excessive.
  "Yossarian went along in Milo Minderbinder's speeding M & M staff car to police headquarters to meet a swarthy, untidy police commissioner with a narrow black mustache and unbuttoned tunic who was fiddling with a stout woman with warts and two chins when they entered his office and who greeted Milo with warm surprise and bowed and scraped in obscene servility as though Milo were some elegant marquis."
• (chiefly British, criminal law) Liable to corrupt or deprave.
  "For the purposes of this Act an article shall be deemed to be obscene if its effect or (where the article comprises two or more distinct items) the effect of any one of its items is, if taken as a whole, such as to tend to deprave and corrupt persons who are likely, having regard to all relevant circumstances, to read, see or hear the matter contained or embodied in it."

verb

• (ambitransitive, rare) To act or speak in an obscene manner; to offend.
  "They passed the little stenchy cubicles shared by two families to a floor, and the graffiti gratuitously graven onto the walls, obscening the world and telling it, them, those, the fuzz, and everyone to go and . . ."