Definition of luges:
(n) :
(countable) A racing sled for one or two people that is ridden with the rider or riders lying on their back.
(n) :
(by extension) (uncountable) The sport of racing on luges.
(v) :
To ride a luge; also, to participate in the sport of luge.
(n) :
(by extension) (countable) A piece of bone, ice or other material with a channel down which a drink (usually alcoholic) can be poured into someone's mouth.
(v) :
(figuratively) To slide or slip down a slope.