Definition of cold turkeys:
(n) :
(informal, idiomatic) A sudden and complete withdrawal from a dependent substance, especially a drug.
(v) :
(informal, intransitive) To undergo sudden and complete withdrawal from a dependent substance, especially a drug.
(n) :
The physiological effects of such a withdrawal.
(adv) :
(idiomatic) Not gradually; all at once; referring especially to quitting a habit by force of will rather than by a gradual reduction.
(n) :
(US military slang, World War I– World War II) Something exposed as a target due to surmountable defense.