Clatter

n.

Heard in Tipperary, Kilkenny, Westmeath, Dublin, Waterford, Cork and Galway

A blow, slap or hit.

In use

Tommy got a right clatter, whin he cot yer wans arse, 'twas priceless.

Posh English

Young Tommy received a rather memorable thumping after he took liberties with the young lady's posterior, which proved entirely priceless.

Same phrase, other counties