Definition of "psych"

psych

/saɪk/

noun
countable and uncountable, plural psychs
1. Psychology or psychiatry.
2. A psychologist; a psychiatrist.
  Quotations
  She had attended a conference of psychs at which he had presided and they had taken a fancy to each other.
  1978, Lawrence Durrell, Livia (Avignon Quintet), Faber & Faber, published 1992, page 476
adjective
comparative more psych, superlative most psych
1. (informal) Psychedelic.
2. (informal) Psychiatric.
verb
third-person singular simple present psychs, present participle psyching, simple past and past participle psyched
1. (transitive, reflexive) To put (someone) into a required psychological frame of mind (also psych up).
2. (transitive) To intimidate (someone) emotionally or using psychology (also psych out).
3. (transitive, informal) To treat (someone) using psychoanalysis.
interjection
1. (slang) Indicating that one's preceding statement was false and that one has successfully fooled one's interlocutor.
2. (dated, slang) An interjection of surprised happiness.