The story
From tip + baiting. Popularised during the 2020s with the rise of food delivery services because of the COVID-19 pandemic, but attested slightly earlier (see quotations below).
Etymology from Wiktionary, CC BY-SA 4.0.
tip baiting
Today it means: In fast food delivery, the practice of promising a large tip (usually on a delivery app) so that the deliverer feels incentivised to swiftly reach their destination, only to deliberately decrease or cancel the tip once the delivery is completed. Full definition →