Tool
Heard in Donegal, Cork, Limerick, Westmeath, Dublin, Galway, Offaly, Waterford and Kildare
Acting in a foolish or dense manner.
Jez yer a tool sometimes when ye go gaddin about in the rain without a coat.
Good gracious, you can be rather dim-witted at times when you wander about in the rain without an overcoat.