Gammy

n.

Heard in Kilkenny, Waterford, Mayo, Cork, Galway, Longford, Westmeath, Sligo and Limerick

Damaged, defective, or functioning poorly, often applied to an injured limb.

In use

Ah dont mind that kick I got, I have a gammy leg dis weather.

Posh English

Pay no attention to that kick I received, I possess a rather defective leg of late.

Same phrase, other counties