Hi Wolfgang. I had to refer to my friend Joe Kerins' notebook for this, I couldn't make out what that final phrase meant either. It's:

Now to conclude, no more for use my pen I will throw down.

i.e. he's not going to use his pen any more. The rest of it sounds fine now, but I'll always think of him throwing a glass onto his lass, when I hear it in the future! :0)

Good luck with singing it!

Noreen