a person with mental issue of some kind.....or is socially inept.
as in, 'don't bother with him - he's a patient'
(originated in UK prisons during the early 1980's and is in wide use inside today)
Synonyms for a patient
On this page, you will find 30 slang terms related to a patient. Some of the top words include: CrazyCooter, Snarfblat, ViruZ, scuz, CRANK, and 25 more.