do-rag also doo-rag (do?o?r?g?)n. A scarf or kerchief worn as a head covering, often tied at the nape of the neck.[do + rag.]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.