What was I drinking?

Strange question I know but let me give some context.

I’m a Yank living in Belfast. I went for a weekend trip in Sligo (Easkey specifically) and loved it. Beautiful county.

I was in the pub when the local guy next to me convinced me to try a drink he claimed was a local thing. It was a essentially a Smitwick’s or maybe a Kilkenny topped with a Guinness head. He called it a pint of “standard” or something like that. I know that’s not the right name but I’ve been trying my best to remember what it’s called.

Evidently it’s not a thing up here in Belfast so maybe it is local to Sligo or maybe the west coast in general?