The sound that a cash register makes when its drawer is closed after money has been put inside. Used in conversation to indicate that the person being spoken about is going to or already has made quite a profit at little expense.

an expression used to show excitement after something good has happened.

An exclamation connoting elation over a success or personal triumph of some kind, which was coined by the actor Seth Green, in 1992, in a Wendy's commercial - after which it spiraled off into existence becoming one of the more hackeneyed expressions of the 90s.

Something that is said once money has been earned or taken.

Slang for "time to cash in". In essence it
is an autoresponse sigh that a typical money hungry woman will make when spotting a wealthy man. The oppurtunity itself brings on this trance-like state and the "cha-ching" sound is heard aloud although it was orginally ment to be manifested in the sayer's own mind.

The ability to make money from nothing

The act of overcharging for a product or service.