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Synonyms

flub

American  
[fluhb] / flʌb /

verb (used with or without object)

flubbed, flubbing
  1. to perform poorly; blunder; bungle.

    He flubbed the last shot and lost the match.


noun

  1. a blunder.

flub British  
/ flʌb /

noun

  1. an embarrassing mistake or blunder

"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

verb

  1. (intr) to blunder or make an embarrassing mistake

"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

Other Word Forms

Etymology

Origin of flub

An Americanism dating back to 1920–25; origin uncertain

Explanation

To flub something is to really mess it up. When a movie actor flubs his lines, the scene can be filmed again. But, if he's a stage actor, there's no way to fix the mistake. Even a star basketball player flubs an easy layup sometimes, and the very best students occasionally flub a quiz. The mistake or blunder itself can also be called a flub: "The concert was terrible, full of flubs." The word's been around since the 1920's, possibly influenced by words like "fluff" and "flop," and definitely coined in the United States.

Keep Reading on Vocabulary.com

Vocabulary lists containing flub

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.

Yesterday, we asked whether you’ve encountered an AI flub.

From The Wall Street Journal • Apr. 15, 2026

You may have just one opportunity to rerecord an answer; if you flub that, there’s no taking it back.

From The Wall Street Journal • Feb. 18, 2026

It wouldn’t be a 2024 campaign event without a verbal flub, and Trump delivered, calling the crowd “hard-working patri-isch-tic” before giving up on the sentence and moving on.

From Salon • May 24, 2024

The Tony Award winner, whose name was infamously mangled by John Travolta during the 2014 Oscars telecast, is laughing at the infamous flub a decade later.

From Los Angeles Times • Mar. 4, 2024

The first time through the bridge, I totally flub it.

From "Sparrow" by Sarah Moon