Gick

n.

Heard in Dublin, Kilkenny and Sligo

A stool or motion.

In use

Had to go down the doctors as me gick was black - he told me it was all the guinness I was after lurrying into over the weekend

Posh English

I was obliged to consult a physician because my excrement was pitch black, which he attributed to my excessive indulgence in stout over the weekend.

Same phrase, other counties