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whopper

American  
[hwop-er, wop-] / ˈʰwɒp ər, ˈwɒp- /
Or whapper

noun

Informal.

  1. something uncommonly large of its kind.

  2. a big lie.

whopper British  
/ ˈwɒpə /

noun

  1. anything uncommonly large of its kind

  2. a big lie

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of whopper

First recorded in 1775–85; whop + -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Maybe the audience knew that was just too big of a whopper.

From Los Angeles Times • Feb. 25, 2026

Even for a president accustomed to making grandiose statements, this one was a whopper.

From Salon • Feb. 12, 2026

You have invested so prodigiously that you have left yourself with a whopper of a tax bill if you were to withdraw large sums now.

From MarketWatch • Oct. 16, 2025

And it’s a whopper: The Pac-12 receives approximately $50 million annually as part of the agreement with the Granddaddy.

From Seattle Times • Mar. 30, 2024

She lay on the bank for a long time waiting patiently until she spotted a whopper.

From "Matilda" by Roald Dahl

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.