clean up

verb

To make an area or a thing clean; to pick up a mess; to tidy.
“Clean up your room.”
“Rhos station had been cleaned up for the occasion, and its single platform was gay with flags.”
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.”
To make something less corrupt or unseemly.
“clean up one's act”
“Gays in Providence have suggested that the raid on the Club Baths was a political action. There is some belief that the newly re-elected Cianci administration wants to prove that it is "out to clean up the city." During the election campaign, the Cianci administration was attacked by opponents as being "soft on crime."”
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.”
To intervene in a fight between two players at low health and easily kill both of them or the winner.
“The key here is to stop third partying and start cleaning up. Running to the first bullets you hear will only guarantee one thing, a fight. […] Cleaning up means only swooping in for the free kills. Is a fight over? Does Octane has his hands in a deathbox? That is when you take the zipline and catch them with their pants down.”