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acronym for "unfriendly indie kid", these are the often pretentious people in skinny jeans, Ray-bans, plaid shirts, flat slouch boots, baggy cardigans and American Apparel everything else. Pronounced "yoo-ick."
Aw, look at the little UIKs swarming around in that concert of a band that no one's heard of!
by candied-pineapple February 03, 2009
An acronym for a weapon named "Ultra Ice Katana" in an online game known as Adventure Quest.
UIK is better than Chill Ripper.
by RobertM January 27, 2007