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.

A few weeks ago, no one had “cheugy” in their vocabulary . Now everything is saturated with the word. It’s in our heads. It’s in our homes. Everyone is asking: “Am I cheugy? Am I a basic ass bitch? Am I GUILTY of being cheugy?”

The proliferation of cheugy in the mainstream discourse can only be attributed to one source: mental terror. It’s an orchestrated psychological trap to make you question your tastes and interests in the eyes of others.

You are not a cheug. YOU’RE PERFECT!!!!

It is very suspicious that the cheugy mascot is a Minion, a literal cyclops, a deformed
yellow panopticon in overalls ... do not let the all-seeing eye to control you. Be vigilant. Resist cheugy psyops.

1) the sound of a cash register
2) the sound that plays in your mind when you get your check

An enthusiastic expression when you get money you did not do much to earn, OR found money

Means "money" is to, or can be, made in an instant.
References the sound older type cash registers made when tabulating a final bill.

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

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