someone who has mixed reality with their own imaginary world. they may also come up with new identities and live by them.

Some random word that you heard in the Metallica song "The Frayed Ends of Sanity" from their album "...And Justice for all" so you looked it up on Urban Dictionary

A metal disorder in which a person fails to comprehend with reality and is characterized as not always there in the head. They often tell tales, make up lies, speak oddly with no sense of reality and will often act with odd behavior such as acting all of a sudden acting very enthusiastic to very happy to very sad to having an angry or violent outburst, to telling lies, to sleeping a lot and shutting people out for a while, you name it. Schizophrenics are known not to live normal leading lives and are usually out of work, living in with friends/relatives, homeless, broke, without a car or living in a mental institute because of their inability to interact with others, and their inability to hold a job. There are different types of schizophrenia, but overall anyone who is diagnosed with schizophrenia fails to comprehend with their reality’s in some way.

A mental disorder which gives a person imaginary people so realisitic a schizophrenic person believes they are real. There are good and bad imaginary people and they grow in numbers as the real person grows older. The imaginary people always stay the same age, a five year old would stay five from the time the schizophrenic person is 2 years old till long past 30. Or 80.
Note: A schizophrenic can only see their own imaginary poeple, and not any other schizophrenics, and non-schizophrenic people are unable to see a schizophrenics imaginary people either.

1. mental illness in which someone cannot understand what is real and what is imaginary
2. (INFORMAL) when someone has two different personalities