Sounds to me like it's a direct quote from the book written to represent exactly what was said by the person. Not what would be considered grammatically correct. But meaning what Paul mentioned above, 'getting up and going off to'

It means something like to get up and leave suddenly. I would love to see further context because 1) it's very strange use it in the present tense like that and 2) if you were to use it in the first person singular in the present tense I would have thought it would be 'up and off' instead. Something is very odd about that sentence, it just sounds bad.

I have never heard this one, but to me sounds like: "ups" in like "get ready, you are up", meaning it's someone's turn to do something. And "offs" like "we are off to the game", meaning we left somewhere to go somewhere else. So, in your sentence, I would go with "And I just got ready and left to the music hall", in a very coloquial way of saying it ("ups and offs"). I am not a native speaker, though, and I may be wrong. It could be some strange slang only known to brits or americans... like Austin Power and his father on english English ("the one that was all sixes and sevens"). *roll eyes* Fly