(slang) Extremely creepy.
2006, Aimee Fountain, [http://books.google.com/books?id=JysEAAAAMBAJ&pg=PA39&dq=%22creeptacular%22 First Nation review], CMJ New Music Monthly, Issue 140, June 2006, page 39 (approx.):
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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