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This term is derived from the root words gnar gnar & Narnia. Gnar being that of freshly laden snow, typically in the form of soft powder which is ideal for skiing, and Narnia being a mythical land from the mind of C.S. Lewis' novel, The Chronicles of Narnia. The combination of words creates "Gnarnia," a sought after, magical place in which the landscape is so perfect for shredding that it is nearly surreal.
"Dude, the conditions on Schweitzer were so flawless today. I thought I had stumbled into Gnarnia."
by plaidpaladin25 December 23, 2008
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The place where you go to ski or snowboard (ski hill). its a play on words. gnar is snow. really, it just sounds cool.

its a mystical place where you shred :P
"Hey, are you going to gnarnia after school?"

"Ya man, I'll see you there!"
by erik74 December 02, 2008
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Whistler Mountain Bike Park... The best Mountain Bike Park on the planet. Especially the Garbanzo Zone...Garbanzo is so steep, technical, and rocky that it is a permanently closed area once the snow arrives. I.e. it is closed to ski/snowboarding in the winter... it puts the Gnar in Gnarnia
The snow is melting in Gnarnia... soon we will rip Goats Gully, Freight Train, and O-Sin!
by cmacowboy June 20, 2010
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A magical land that can only be reached by smoking pot. By awesome people.
"Dude you wanna go to G-narnia this weekend with Alek?"
" I would love to, but this faggot won't stop riding my asshole."
"Oh, ok..... Im gonna go have oral sex with Noah's mother."
by Naught Narnian December 26, 2007
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