Images: superlocal (left) and shezzz (right), both from Flickr
That's the tornado potato, a new snack found on the streets of Seoul, South Korea: take a spud and carve it into a long spiral and deep fry it to a crisp. Yum!
http://www.poketo.com/hello/superlocal/?p=327 - Thanks pockette!
Spiros, butterfly spud, tortao, etc do not have them on the stick and yes they have been around for a while but they are the curly or spiral fries cut into a basket not onto a stick.
The snack / street food of Korea does not originate from there as it was developed in South Africa over a decade ago.
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