Rotten

adj.

Heard in Cork, Kilkenny, Wexford, Armagh, Sligo, Kerry, Galway and Limerick

Suffering from particularly foul and noxious flatulence.

In use

I had a feed of curry last night and I'm rotten this morning!

Posh English

I consumed rather a lot of curry last night and this morning I am suffering from quite appalling flatulence.

Same phrase, other counties