Akademik

psycho
1. adjective /ˈsaɪkoʊ/
Psychotic, or otherwise insane.
2. noun /ˈsaɪkoʊ/
a) A person who is psychotic or otherwise insane.

The loony bin up on the hill is full of psychos.

b) A person who acts in a bizarre or dangerous manner.

She complained that he was a psycho for driving at such a high speed in heavy traffic.

Syn: freak, loony, nutcase, wacko, creep, loose cannon, weirdo

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