PSYCH

Etymology

Noun

psych (countable and uncountable, plural psyches)

Psychology or psychiatry.

A psychologist; a psychiatrist.

Adjective

psych (comparative more psych, superlative most psych)

(informal) Psychedelic.

(informal) Psychiatric.

Verb

psych (third-person singular simple present psychs, present participle psyching, simple past and past participle psyched)

(transitive, reflexive) To put (someone) into a required psychological frame of mind (also psych up).

(transitive) To intimidate (someone) emotionally or using psychology (also psych out).

(transitive, informal) To treat (someone) using psychoanalysis.

Interjection

psych

(slang) Indicating that one's preceding statement was false and that one has successfully fooled one's interlocutor. Also sike.

(dated, slang) An interjection of surprised happiness.

Source: Wiktionary