ka-ching
The fake sound of a cash register, like it’s bragging about how it’s been around since the 1900s and your phone still doesn’t know how to make a real sound.
'Ka-ching!' my phone made when I got money from my rich cousin, even though it sounded like a dying cat.
My phone went 'ka-ching' when my rich aunt sent me money for my birthday, and it was the worst sound ever.
My phone made 'ka-ching' when my ex sent me money for my divorce, and I wanted to die.