Simple past tense and past participle of creep.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "creeped" in a sentence
"So Gini and I watched Harry Potter and the Chamber of Secrets last night, and I was once again creeped out when Harry stabs the diary that contains the copy of a teenaged Lord Voldemort's essence."
"| Reply lmao @ Rex Hondo. well done the new Joker face/expression creeped me out to high hell. im not so sure about the clothes. even if the new face is awesome, ive always been a fan of the neat and tidy purple suit and cane that allows the joker to walk with a bit of daintiness (read: hidden insanity)"
"Careful not to touch the body—the idea creeped her out—she picked up the pill bottle."