ching ching Share definition Flag Money. Comes from the sound of a cash register, especially when full of coins, when it opens. Often used at the end of a sentence with an exclamation mark. Gotta find a new job that pays more ching ching! ching ching by Fat Rabbit July 21, 2005 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug