The translation of the title means “Go away home” or “home you’ll go.” A girl named Mary is told in no uncertain terms that she’d better “go away home and stay there because your (marriage) contract Is made.” It doesn’t matter whether or not she’s the one who made the contract; it’s done, and that’s it. Or, as the notes on one version of the sheet music say, “The girl, Mary, having been forced into an arranged marriage with a piper, is advised to go home and accept it.” Seems a little harsh, doesn’t it? And not the mood that would fit the rousing music. That meaning would mesh better with some kind of melancholy ballad, with perhaps the unhappy girl drowning herself at the end.
But I think this interpretation is mistaken. The website SongsInIrish.com says, “This traditional song teases the girl ‘Máire’ about her possible relationship with the piper at the dance. The singer and Máire argue back and forth about whether her ‘match is made.’”