To make an area or a thing clean; to pick up a mess; to tidy.
To make a large profit; to win by a large margin, or to win a large amount, especially in gambling. Also clean house.
To intervene in a fight between two players at low health and easily kill both of them or the winner.
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.
To waste, lavish, splurge; to spend lavishly or profusely; to dissipate.