fuck up
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
To make a mistake, to go wrong.
Register: slang, vulgar
Where it’s used:
Used
American English
Examples
You really fucked up this time.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
To botch or make a mess of.
Register: vulgar
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 3
Meaning · English
To injure or damage badly.
Register: vulgar
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “fuck up” mean?
To make a mistake, to go wrong.
Is “fuck up” formal or informal?
fuck up is generally slang, vulgar.