fa·kie or
fa·key 
(f
ăk
ē)
adv. & adj. Sports In sports such as skateboarding or snowboarding, riding with the foot one usually has forward placed to the rear: rode fakie down the rest of the hill; a fakie trick.
[FAKE1 (perhaps because a maneuver performed while riding fakie can be seen as a fake version of a maneuver performed in normal stance or can seem more novel or difficult than it actually is) + -IE.]