Flannigin's it is, so

Speaking of women cavorting alone on beds - speaking to myself you understand - I was thinking of everyone's favourite woman of Joyce, Fionnuala Flanagan. And what was I thinking?

Her surname. That's the standard anglicized spelling of the name, and even in America, give or take doubling the 'n', it's the only spelling I've seen. So what?

Well Cameron Russell, guitarist and vocalist, has confirmed that the band you saw at Stumpy's before The Elders are called FLANNIGIN'S Right Hook:

Actually,it's Flanagan's Right Hook, but everyone on the message boards spells it Flannigin's Right Hook, so since that's what most people are going with we switched over too, so Flannigin's Right Hook it is. And I'm gonna give somebody a right hook if they misspell it again. P.S. might even throw in a left hook too

And why the confusion? Blame the masses, the people, and thank FRH (wish I'd thought of that before) for their expediency.