The phrase comes from everyday Mexican Spanish slang, where me vale is a dismissive way to say something does not matter, paired here with a direct order to pay. The full wording is intentionally vulgar and confrontational, which helped it circulate as a short WhatsApp and soundboard reaction rather than as a formal quote from a known show or film. Its popularity rests on instant clarity: listeners understand the attitude in one line, so creators reuse it for money jokes, fake arguments and abrupt comedic cutoffs.