creepy-crawly

nouns

an animal that creeps or crawls (such as worms or spiders or insects)
creepy-crawly
is a type of (narrower)
a living organism characterized by voluntary movement
animal, animate being, beast, brute, creature, fauna

adjectives

causing a sensation as of things crawling on your skin
"a creepy story"; "I had a creepy-crawly feeling"
creepy, creepy-crawly