What Does โFoul sth upโ Mean?
โFoul sth upโ means to make a mistake or spoil something, often causing a problem or failure.
Introduction
The phrase foul sth up is a common informal phrasal verb used in English to describe situations where someone messes up or ruins something. It can refer to making errors in work, plans, or any activity that leads to a negative result. Understanding the foul sth up meaning helps English learners express frustration or explain when things go wrong. This phrase is often used in everyday conversations, especially when talking about mistakes that could have been avoided. Knowing how and when to use โfoul sth upโ will improve your speaking and writing skills by allowing you to describe problems clearly and naturally.
Quick Info Box
- Phrasal verb: foul something up
- Type: transitive
- Level: B2 (Upper-Intermediate)
- Short meaning: to make a mistake or spoil something
Structure (Grammar Rules)
โFoul sth upโ is a separable phrasal verb. This means you can place the object (something) between โfoulโ and โupโ or after โup.โ
- Correct: I fouled the report up.
- Also correct: I fouled up the report.
Both forms are acceptable, but placing the object between the verb and particle is more common in spoken English.
How to Use โFoul sth upโ?
Use โfoul sth upโ when you want to say that someone has made a mistake or caused a problem with something. It is informal and often expresses mild frustration or disappointment.
Examples of use include describing errors at work, problems in plans, or messing up simple tasks. It always requires an object โ what exactly was fouled up.
Examples
- He really fouled up the presentation by forgetting his notes.
- Donโt foul up the schedule; we have little time to finish.
- She fouled the order up by sending the wrong items.
- We fouled up the project because we didnโt communicate well.
- Try not to foul it up this time โ itโs very important.
Common Mistakes
- Incorrect: I fouled up.
- Correct: I fouled it up. (Needs an object)
- Incorrect: She fouled up the.
- Correct: She fouled up the plan.
Remember, โfoul sth upโ is transitive, so you must include what was fouled up.
Differences / Synonyms
Similar phrasal verbs include:
- Muck up: Also informal, means to make a mistake or spoil something. Very similar to โfoul up.โ
- Screw up: More casual, means to mess something up badly.
- Mess up: A general phrase for making mistakes or causing disorder.
โFoul upโ often sounds slightly more formal than โscrew upโ or โmuck upโ but less formal than โmess up.โ
Common Collocations
- foul up the plan
- foul up the schedule
- foul up the order
- foul up the project
- foul up the report
Real-life Dialogue
Anna: Did you finish the report for the meeting?
Tom: I tried, but I think I fouled it up. I mixed some of the data.
Anna: Oh no! Can you fix it before the meeting?
Tom: Iโll do my best. I donโt want to foul it up again.
Practice
Fill in the blank with the correct form of โfoul upโ:
- He __________ the schedule by arriving late.
- Be careful not to __________ the order.
- We __________ the report, so we had to rewrite it.
- She always __________ things when sheโs nervous.
FAQs
- Q: Is โfoul upโ formal or informal?
A: It is informal and used mostly in casual conversations.
- Q: Can I say โfoul upโ without an object?
A: Usually, you need an object, but in some cases, โfoul upโ is used without one to mean โmake a mistake.โ
- Q: What is the difference between โfoul upโ and โmess upโ?
A: Both mean to make a mistake, but โmess upโ is more general and common.
- Q: Can I use โfoul upโ in writing?
A: Itโs better for informal writing, such as emails or chats.
- Q: Is โfoul upโ used in British or American English?
A: It is used in both but is more common in British English.

