up and did

up and (do something)

To do something quickly, unexpectedly, or abruptly, especially without warning or explanation. I must have offended him, because halfway through the conversation he just up and left. The town has been in a panic searching for a young girl who up and vanished over the weekend. Everyone asks how I came up with the story, thinking it must have taken all this time and planning, but the truth is one day I thought up the premise and then I just up and wrote it.
See also: and, up
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

up and did something

Rur. did something suddenly. That summer, she up and died. He had lived here for twenty years, and then one day, he up and left for good.
See also: and, did, up
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
See also: