Definition of psych-out:
(n) :
(uncountable) Psychology or psychiatry.
(n) :
(countable) A psychologist; a psychiatrist.
(n) :
A psychiatric hospital; psychiatric treatment.
(v) :
(transitive, reflexive) To put (someone) into a required psychological frame of mind (also psych up).
(v) :
(transitive) To intimidate (someone) emotionally or using psychology (also psych out).
(adj) :
Psychiatric.