cha ching Share definition Flag 1) the sound of a cash register 2) the sound that plays in your mind when you get your check 1) Cha ching, two dollars and thirty-three cents is your change. 2) Oh yea, I just got paid cha ching, now I'm getting laid. cha ching by snorgle October 18, 2003 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