To me the "up and X" implies something that recently happened while "upped and Xed" feels further in the past to me.tanuki wrote:
Thank you all for your input. I see there are different reactions to this structure.
By the way, many of the examples you people gave also conjugates the "up" itself.
She upped and married her cousin. instead of She up and married her cousin.
What are your thoughts on this?
Mr. Bojangles being sad about his long dead dog can use "up and died" because the event's still current for him.
At least that's how it feels to me. No doubt others will have their own erudite and loquacious opinions.