clean up

verb5

1. •
   To make an area or a thing clean; to pick up a mess; to tidy.

   • Clean up your room.
2. •
   To make something less corrupt or unseemly.
3. •
   To make a large profit; to win by a large margin, or to win a large amount, especially in gambling. Also clean house.

   • Man, he sure cleaned up last night at the blackjack table.
   • The investors cleaned up when the stock hit the roof last year.
4. •
   (informal) To become clean, handsome, smart in appearance, e.g. for a special occasion, especially when it is out of character to be seen as such.

   • He sure cleans up nice.
5. •
   To intervene in a fight between two players at low health and easily kill both of them or the winner.