:disusered: adj. [USENET] Said of a person whose account on a computer
has been removed, esp. for cause rather than through normal
attrition. "He got disusered when they found out he'd been
cracking through the school's Internet access." The verbal form
`disuser' is live but less common. Both usages probably derive
from the DISUSER account status flag on VMS; setting it disables
the account.
-- The AI Hackers Dictionary