Definition of "neatnik" [neatnik]

• One who is habitually neat and orderly. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Frank Hauser calls him a "neatnik," and says you could eat off the floor of his cars, they were so clean."
• "Mr. Andreessen values his privacy and is a neatnik."
• "Without alcohol or illicit drugs altering his consciousness, Brian become a neatnik and a health enthusiast."