7 Drunken Nights wasn't written by The Dubliners, they just performed it. I don't think they ever performed the last two verses to a large audience as they get a bit dirty. I'm sure you can find the full song on youtube performed by other Irish band. Otherwise, down the pub the next night there's an Irish band playing. If I remember right, there's hands on her breasts on a saturday and a thing in her thing on the sunday.
If you google Seven Drunken nights as I did, you will find the answer.
It then becomes obvious why those verses were omitted from public brodcast versions! ;)