There is so much un-wiped fecal matter in the crevice between your left and right butt cheeks that you can no longer open them. May often cause inability to poop. It is often linked to having a lot of anal hair and a lack of hygiene. As well as being a condition, it can also be used as an insult.
A Zipper-Head is one who still believes that the earth in the center of the Universe and that Humans never evolved as Science has proven.
Zipper-Heads are everwhere and they may not even realize they are one, but they are...and shall ever be one until E.T. takes a cosmic shit on there freshly manicured lawn.
the phycological disorder over the placement of your zipper on clothes, bookbags, and ect. But when someone messes up the placement of said zipper, this may result in great anger and immediate replacement of the zipper.
Urrrg, you just messed up my zipper, now my zipper placement disorder is kicking in.
the act of intentionally jamming or destroying another's zipper. Can be done with a string or other fabric, but gum is the most common practice. The most conniving individuals attack their victim while they are wearing the garment, preventing their victim from escaping their garb.
Mom: Jimmy, did you like that bucket of bazooka I bought you?
Jimmy: I sure did mom (thinking: thanks alot for the cheap gum, I liked it as much as I like your fur coat) Mom, why don't you show dad your new fur coat?
Mom: I can't get it on! Dangit Jimmy! You zipper gummed me!