Definition of "hyperbole" [hy•per•bo•le]
1. A figure of speech in which exaggeration is used for emphasis or effect, as in I could sleep for a year or This book weighs a ton. (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.