Definition of gammons:
(n) :
A cut of quick-cured pork leg.
(n) :
(backgammon) A victory in backgammon achieved when the opponent has not borne off a single stone.
(v) :
(backgammon) To beat by a gammon (without the opponent bearing off a stone).
(v) :
To cure bacon by salting.
(n) :
(dialectal) A joke, trick; play, sport, merriment.
(v) :
(colloquial, dated, transitive) To deceive; to lie plausibly to.