The number 877-CASH-NOW is best known as the contact number promoted by JG Wentworth, a US financial company that buys structured settlements and annuities. Its television commercials turned the number itself into a sung hook, making it easy to remember and easy to quote. Clips of the jingle later circulated online as a reaction sound, especially in videos about money, spending and sudden windfalls. It remains in use because the hook is instantly recognisable, short enough for a punchline and tied to a familiar idea: getting cash quickly.