Definition of sconced:
(n) :
A fixture for a light, which holds it and provides a screen against wind or against a naked flame or lightbulb.
(n) :
A candlestick (holder for a candle, especially a circular tube, with a brim, into which a candle is inserted), either with a handle for carrying, or with a bracket for attaching to a wall.
(n) :
A head or a skull.
(n) :
A poll tax; a mulct or fine.
(n) :
(Oxford University slang) An act of sconcing; very similar to a fine at Cambridge University, though a sconce is the act of issuing a penalty rather than the penalty itself.
(v) :
(Oxford University slang) During a meal or as part of a drinking game, to announce some (usually outrageous) deed such that anyone who has done it must drink; similar to I have never; commonly associated with crewdates; very similar to fining at Cambridge University.