The Apple Pay sound comes from the iPhone payment confirmation experience tied to Apple Pay, Apple's mobile wallet service introduced in 2014. Online, the brief checkout ding spread beyond real payments and became a meme shorthand for buying something instantly, spending money, or pretending a purchase just went through. It shows up in short-form edits, prank videos, and joke skits because the sound is recognizable in a fraction of a second. Creators also use it like a generic ding sound effect for polished tech or payment-themed moments.