fuck up
/ˈfʌkˌʌp/
"fuck-up" is a 6-letter English headword indexed on PlainSpell.
The verdict
“fuck up” is uncommon English (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 7
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To make a mistake, to go wrong.
Corpus desk
Index EN-fuck-up · fuck up · English
fuck up · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 7 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "F" thin
- PHOTO-UNK Peer pending
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
| Property | Value |
|---|---|
| Headword | fuck up |
| Language | English |
| Part of speech | Verb |
| IPA | /ˈfʌkˌʌp/ |
| Letters | 7 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “fuck up” in English
Rare enough to double-check
fuck up is uncommon English outside the top frequency list, classed as averb, transcribed /ˈfʌkˌʌp/. Rarity is why readers land here mid-draft. 7 senses are on record.
Zero misspellings are on record for fuck up in our index, which points to an orthography that plays by predictable English rules. No confusable counterpart is on file for this word, a sign it's visually distinctive enough not to be mixed up with another word.
Our source data has no etymology on file for this entry, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is fuck up, spelled F-U-C-K- -U-P.
Definition
- 1To make a mistake, to go wrong.
- 2To botch or make a mess of.
- 3To injure or damage badly.
- 4To cause someone to become intoxicated or otherwise alter someone's mental state.
- 5To traumatise; to negatively affect the wellbeing of someone.
- 6Synonym of destroy (“to eat food quickly, hungrily or completely”)
- 7Ellipsis of shut the fuck up.
Recorded use
Wiktionary examplesThese source excerpts show how fuck up appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
You really fucked up this time.
Don't you fuck up again.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.