[ fuhk-uhp ]
/ ˈfʌkˌʌp /
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noun Slang: Vulgar.
a person who acts in a stupid or careless way, especially habitually:Even with those credentials he's a monumental fuckup as a lawyer.
a careless or stupid mistake, or something done badly or inadequately:They tried to hide their catastrophic fuckup for three months.
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Origin of fuckup

First recorded in 1955–60; noun use of verb phrase fuck up
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for fuckup

fuck up
/ offensive, taboo, slang /

verb (tr, adverb)
to damage or bungleto fuck up a machine
to make confused
noun fuck-up
an act or an instance of bungling
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 Idioms and Phrases with fuckup

fuck up


Ruin, botch, spoil. For example, Don't tell me you're going to fuck up again. It is also put as be fucked up, meaning “be ruined or spoiled,” as in This entire project is fucked up. This vulgar usage dates from the early 1900s but did not become widespread until about 1940.


Act carelessly or foolishly, mess up, as in I'm sorry, I really fucked up when I invited them. [Vulgar slang; c. 1940]


Break down, fail, as in If the flash mechanism fucks up again, I won't get a picture. [Vulgar slang; c. 1980]


be fucked up. Be very confused or mentally ill; also, intoxicated. For example, He was so fucked up they had to hospitalize him, or What a party—I sure got fucked up. [Vulgar slang; 1940s]

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