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2.
a mentally unstable person associated with Good music that does not suck, but has leftist political views, much like Rage Against The Machine, System of a Down, Boots Riley, Street Sweeper Social Club, Anti Flag, U2 (possibly), and MC5. the term comes from the Slipknot song, Psychosocial.
Tom Morello might be a damn good guitar player, but he is a bit of a Psychosocialist.
by M-22-12 October 21, 2011
 
1.
Someone who is too morbid to be an extravert and too lonely to be an intravert. This causes massive confusion in their head, caught between wanting to be alone and wanting attention.
That guy is a Psychosocialist, because he seems to be pacing between his friends and that corner
by The Psychosocialist March 05, 2010