ban on entering; barred from entry
Colloquial abbreviation of 出入り禁止. Used when someone is banned from a place, such as a store, bar, or event.
See also: 出入り禁止
That customer caused trouble and got banned.
I'm barred from here, so I can't go in.
Abbreviation of 出入り禁止 (でいりきんし), literally 'entry and exit prohibited'. The exact origin is uncertain, but it likely arose in informal contexts.