What is the meaning of oily?

adjective

• Containing an unusual amount of grease or oil.
  • usage: "greasy hamburgers"; "oily fried potatoes"; "oleaginous seeds"
  • synonyms: greasy, sebaceous, oleaginous
• Unpleasantly and excessively suave or ingratiating in manner or speech.
  • usage: "buttery praise"; "gave him a fulsome introduction"; "an oily sycophantic press agent"; "oleaginous hypocrisy"; "smarmy self-importance"; "the unctuous Uriah Heep"; "soapy compliments"
  • synonyms: buttery, fulsome, oleaginous, smarmy, soapy, unctuous
• Coated or covered with oil.
  • usage: "oily puddles in the streets"
• Smeared or soiled with grease or oil.
  • usage: "greasy coveralls"; "get rid of rubbish and oily rags"
  • synonyms: greasy