Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
Very rapidly and uncontrollably. I didn't expect that rumor to spread like wildfire, but it seems like everyone has heard about it already.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
Rapidly and intensely: The disease spread like wildfire.
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.