Definition of spit roast:
(n) :
(cooking) The technique of roasting an animal over a fire, where the cook pokes a rod through the animal and sets the ends on two sticks to suspend the animal over the fire.
(n) :
(vulgar, slang) A sexual practice wherein two people penetrate a single sexual partner at the same time, one orally and the other vaginally or anally.
(v) :
Alternative form of spit-roast. [(transitive) To roast (meat) on a spit (“metal or wooden rod”).]