Puppeteer
When a guy, or a girl going commando, zips up his/her pants and gets some of their pubic hair caught in the zipper. As one walks, the zippers pulls up and down on the pubic hair, much as a puppeteer manipulates a puppet.
"Dude, I was in such a rush, I totally got caught in a massive puppeteer."

"Dude, that puppeteer was so bad, it looked like I caught Buckwheat in my zipper."