pod person

pod person

n, pl pod people
informal a person who behaves in a strange esp mechanical way, as if not fully human
[C20: from the science-fiction film Invasion of the Body Snatchers (1956; remade 1978) in which individual humans are replaced by alien replicas grown in giant pods]
References in periodicals archive ?
A pod person, in at least two science fiction novels and movies, is an alien.
When the process is complete the leftover body is a shell and the new pod person looks and sounds just like someone you know and trust.
Eyes glazed over, walking around snarling at Santa Claus and carolers - nodding in mutual recognition whenever we pass another pod person.