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1.
A relatively recent (since 1988) evolution of the sport of skiing. While traditional skiing - which is what most people think of when they hear the word "skiing" - focuses on strict disciplines like racing, freestyle moguls, etc, freeskiing allows room for creativity, personal expression, and style. The two main categories of freeskiing are big-mountain skiing and park/newschool skiing, although most freeskiers do both to some extent.
Big-mountain skiing developed from "extreme skiing" in the late '80s to early '90s. As the name implies, it involves descending large, steep mountain faces at high speeds, and it is usually done in the backcountry on ungroomed snow (often powder). Any line at all can be taken down the mountain, and skiers often air off of cliffs, windlips, spines, etc. It is not about competing or trying to race to the bottom. It's about creativity, having fun, and enjoying the snow.
Newschool skiing is done in terrain parks at ski resorts. Largely inspired by freestyle snowboarding, it involves doing tricks, hitting jumps, sliding rails, jibbing, and skiing halfpipe. It is becoming increasingly popular among youth, and many people are pushing to have halfpipe skiing included in the 2010 winter olympics, which would do a lot for legitimizing freeskiing.
Most people still think of conservative, nerdy golfers when they think of skiing, because freeskiing has not had a lot of mainstream exposure. these are the same people who still believe in the feud between skiers and snowboarders (which no longer exists), with snowboarders being the irreverent youth and skiers being the elitist pricks on sticks. This stereotype is outdated, and soon the rest of the world will catch on to that.
Snowboarder: Hey, man, what's that skier doing? he's shredding pow and doing tricks 'n shit. He's such a douchebag, pretending to be a snowboarder.
Other Snowboarder: Educate yourself, bro. He's a freeskier. That's his sport.
Snowboarder: Oh. I totally understand now. I totally respect his sport, 'n shit.
Freeskier: Cool. I respect snowboarding because it's done so much for freeskiing, 'n shit.
Other Freeskier: Let's all go ski and ride and get high 'n shit.
All: Ok.
by chinnychinchin June 13, 2007
 
2.
A newly emerging way of skiing. Usually using twin tipped skis for backwards take offs and landings. The sport of free skiing has revolutionized and given new life to the once thought dying sport of skiing. Many free skiers take their skill into the terrain parks(once called snowboard parks just for snowboarders) To slide boxes and rails and hit various snow features. Others take their skis to the back country or take heli copters to the tops of alpine peaks. As they descend these powder covered mountains they take sick lines and do awesome tricks off of cliffs and other natural features.
Dude have you ever seen Seth Morrison free skiing? he does some crazy shit!
by skierguy June 25, 2007