Butt

n.

Heard in Tipperary, Cork, Waterford, Galway and Antrim

The bottom or lower end of something.

In use

The butt of a chisel." "The butt of a shed." "The butt of a Hurley." "The butt of me fist.

Posh English

That is the lower extremity of a chisel, a shed, a hurley stick, or indeed one's own fist.

Same phrase, other counties