Lousy

n.

Heard in Limerick and Kilkenny

Describing an action or person that is mean-spirited, unfair, or lacking in basic decency.

In use

That's lousy, cuz, taking the last of the tea without asking.

Posh English

That is dreadfully spiteful, old friend, to consume the final portion of the tea without seeking permission.

Same phrase, other counties