The space between your helmet and your goggles exposing your forehead while skiing. Extremely bad gorby gaps can show over an inch of forehead, and sometimes even have strands of hair falling over the person's goggles. Gorby gaps can be caused by a bad fall, or the person just not knowing any better. A good skiier can get a gorby gap and will be laughed at, but gorby gap is almost always seen on a Gorby.
"You just packed crap dude, you better fix your goggles you've got a gorby gap."
A term used by snowboarders/skiiers referring to the zippers at the ankles of your snowboard pants that zip up to make your pants tighter around your boots. Unzipped they make the pants appear baggier and therefore more "ghetto".