Definition of body snatchers:
(n) :
One who abducts or controls another's body, such as a slaver, psychic, or human resources agent.
(n) :
(in particular) A graverobber who steals bodies or body parts.
(n) :
(historical) One who sells cadavers to anatomists, surgeons, etc., especially by exhuming corpses from graves, a resurrection man.
(n) :
(British, military, slang) A stretcher-bearer.
(n) :
(slang, humorous, derogatory, obsolete) One who makes arrests, such as a bailiff or policeman.