There are plenty of one-liners in “A Night With George,” and they’re even more hilarious if you can understand them.

Donna O’Connor’s one-woman show, part of the1st Irish Festival, features a “vernacular dictionary for non-Belfast people” in the program. Peruse it before the show, if you can; even so, her accent makes the going tough.

A sort of politically tinged “Shirley Valentine,” the piece features the talented O’Connor as Bridie Murphy, a 48-year-old West Belfast woman who’s just returned from a night on the town with George Clooney. Or rather, a life-size cardboard cutout of the actor to which she delivers a monologue about her troubled life, what with “the Troubles” and all.

Between gulps of vodka and Diet Coke, Bridie provides a profane, one-liner-infused account of how she fell in love at 18 with an IRA rioter who went to prison soon after. Raising their son alone, she manages to become a nurse.

“But I have to tell you, George, none of the doctors looks like you,” she complains. “And there’s no sex in the linen cupboards. F – – k, you’re lucky if there’s linen in the linen cupboards!”

Only after her husband’s freed from prison — and leaves her again, for another woman — does Bridie find herself. This is conveyed through a boozy rendition of “I Will Survive,” complete with scatological new lyrics.

The amply proportioned Bridie — “I don’t wear a bra no more, I just tuck ’em down my knickers” — is a strikingly funny character, and O’Connor makes the most of her. Though short on substance, the largely Irish audience the other night ate it up.