Also found in: Thesaurus.
1. One, such as a spider, insect, or worm, that crawls.
2. creepy-crawlies A sensation of fear, repugnance, or nervous agitation.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.