Unctuous is an adjective. It means excessively or insincerely polite.
Rick- Can you hand me that remote next to you, please?
James- Yes master, anything for you. I am not worthy. Forgive me.
Rick- What? Stop being so unctuous.
James- Fine. How about you get it yourself, noob.
Rick- Gah!
by danielson153 May 28, 2009
Unctuous - (v.) Characteristic of an ointment; something oily or greasy.
Robert Pattinson has very unctuous hair! WHY DOES EVERY TWILIGHT FAN LIKE HIM? IT'S SO DISGUSTING!
by DimSumKitti April 25, 2010

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