The psyique is used to refer as "the soul" or spirit of a person, in other words the mind.
psy(psyque) cologi(study) study of the soul/spyrit of a person, psycology
your psyque is sik dude!!
To fake someone out or to make fun of what they are saying about someone.
Guy 1:Man I must be the best football player in this whole school
Guy 2:Umm naw man, psyque!