Face plant, Blowout, Hip-check, Cartwheel.
Cartwheel is my favorite. It is when you get off balance as your skis release from the turn and they transition into the air. Instead of gaining contact with the snow and starting a new turn they continue into the air and end up somewhere between the infinite space above your head and your shoulders. This one is fun. When done at speed it can cause a nice cartwheel motion when your edges (and body) come in contact with the snow on your return route. You usually end up sliding and flipping head over heels - but sideways, which is always a nice change of pace. A hip check can also result in a cartwheel, but is easier to control since you arent in the air.
I have had my share of all of the above, as well as some creative ones where your outside ski will magically release mid turn - for no reason at all. That will result in any, if not all, of the above mentioned mishaps. They build character though... and high DIN settings.