What is Zipponer?
1.
The lump that may appear in your pants crotch area when you sit down in a certain manner pushing the top and bottom parts of your fly together.
"Dude, readjust your pants, you got a zipponer."
See
2.
When your zipper in you pants become scrunched up when you sit in a certain manner, it resembles a boner. This is called a zipponer.
"Dude, readjust your pants, you got a zipponer."
See