Gorgeous Holly Montag shows just how Irish she is by getting a tattoo which reads: "Cha bhi fios aire math an tobair gus an traigh e," which means, (as we all know here in Irish Central) "The value of the well is not known until it goes dry."

"The Hills" sibling showed off her tattoo at the Playboy/Bacardi party last Saturday night in Miami.

Wonder who she's getting at with that dig?