The act of collecting every last wallflower at a school dance or prom, cramming them into a van, sometimes (not always) involving several people making out with each other at any given time, typically lasting until the wee hours of the morning (or whenever curfew comes into play).
*NOTE* Wallfowers tend to have more dignity, or at the very least, be considerably more shy than the average "date". For this reason, Wallflower Orgies NEVER involve sexual intercourse, regardless of what the name may imply.

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