The act of seeing two movies for the price of one at a public movie theater. You watch the first movie, take special notice of when the next movie will start, hang out in the restroom until the appropriate start time, and then mosey on over to the correct theater. It causes undue stress for only saving 10 bucks, but it can make an afternoon fly by.
So I was checking out a double feature the other day, but I was so nervous I hid out in the women's restroom! So much for not calling attention to myself