break up

(intransitive, idiomatic, figuratively) Become disorganised

Example:   It broke up when it hit the ground.
  She broke up with her boyfriend last week.
  The meeting finally broke up after a three-hour discussion.
1762, Charles Johnstone, The Reverie; or, A Flight to the Paradise of Fools[1], volume 2, Dublin: Printed by Dillon Chamberlaine, OCLC 519072825, page 202:
  At length, one night, when the company by Å¿ome accident broke up much Å¿ooner than ordinary, Å¿o that the candles were not half burnt out, Å¿he was not able to reÅ¿iÅ¿t the temptation, but reÅ¿olved to have them Å¿ome way or other. Accordingly, as Å¿oon as the hurry was over, and the Å¿ervants, as Å¿he thought, all gone to Å¿leep, Å¿he Å¿tole out of her bed, and went down Å¿tairs, naked to her Å¿hift as Å¿he was, with a deÅ¿ign to Å¿teal them […]
1898, J. Meade Falkner, Moonfleet Chapter 4
  So the meeting broke up, and the torchlight grew dimmer, and died away as it had come in a red flicker on the roof, and the footsteps sounded fainter as they went up the passage, until the vault was left to the dead men and me.
  You're breaking up. Can you repeat that?
  Break up the cheese and put it in the salad.
  The police came in to break up the disturbance.
2011 September 18, Ben Dirs, “Rugby World Cup 2011: England 41-10 Georgia”[2], BBC Sport:
  England's superior conditioning began to show in the final quarter and as the game began to break up, their three-quarters began to stamp their authority on the game. And when Foden went on a mazy run from inside his own 22 and put Ashton in for a long-range try, any threat of an upset was when and truly snuffed out.