Moved the spider

Having "moved a spider" or "moved the spider" refers to a group of 4 people in a circle jerk using only their feet. The 8 feet make the "spider". When someone "moves the spider" they have successfully caused their person to nut. A new person switches in, slightly changing the geometry of the circle. By this mechanism, the spider can move its way across the room, depending on how many people are waiting to jump in when it moves.

My size 14's really "moved the spider" last night at the frat party. I've never been so drunk or so good with my feet before. Maybe I should drop my econ major and go into ballet, bro.