Black

adv.

Heard in Sligo, Kilkenny, Limerick and Tipperary

Describes a room or venue that is packed to absolute capacity with people.

In use

We couldn't even squeeze in the door for a pint because the pub was black la!

Posh English

We could not so much as squeeze through the door for a pint, for the public house was packed to bursting!

Same phrase, other counties