Quare

adj.

Heard in Derry, Donegal, Cavan, Waterford, Kildare, Clare, Fermanagh, Kerry, Down, Wexford and Wicklow

A considerable amount of something, occasionally deployed with heavy sarcasm.

In use

Aye you're quare craic hi

Posh English

Indeed you are a quite considerable source of amusement, my dear fellow.

Same phrase, other counties