creepy-crawly
noun
[ kriːpɪˈkrɔːli ]
• a spider, worm, or other small flightless creature, especially when considered unpleasant or frightening.
• "Sylvia started to hallucinate, seeing creepy-crawlies on her bed"
creepy-crawly
adjective
• causing an unpleasant feeling of fear or unease.
• "creepy-crawly stories"