[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. Compare star out.