To have one's ride suddenly become unavailable, generally because it is "too late" according to parents, local laws, or public transit authorities. Generally used in the future tense, to describe the time later in the night at which point an individual will be depending on someone else for transportation.

Contrary to what one might expect, the person themselves turns into a pumpkin, rather than the ride itself.

When you eat dirt for the first time and leave your family to build a shack in the woods