creepy-crawly
1. [ adjective ] causing a sensation as of things crawling on your skin
Synonyms: creepy
Examples:

"a creepy story" "I had a creepy-crawly feeling"

Related terms: alarming
2. [ noun ] (zoology) an animal that creeps or crawls (such as worms or spiders or insects)
Related terms: animal
Similar spelling:   creepy-crawlies