pile off
To climb down (from something) or disembark (off something), especially in a rough, disorderly fashion. We all piled off the bus and ran toward the beach. The van pulled up and all the kids piled off. The kids piled off the trampoline when I called them in for dinner.
pile off (something)
to get down off something; to clamber down off something. All the kids piled off the wagon and ran into the barn. She stopped the wagon, and they piled off.