Whist

exp.

Heard in Leitrim, Tipperary, Kildare, Kerry, Kilkenny, Donegal, Cavan, Armagh, Sligo and Carlow

Be quiet. Also: to listen or to shut up, depending on context and tone.

In use

Ahh will you ever whisht, Ireland don't stand a chance in the World Cup.

Posh English

Oh, do hold your tongue, Ireland have not the faintest hope in the World Cup.

Same phrase, other counties