Fatten sth up Meaning, Examples & How to Use This Phrasal Verb

What Does โ€œFatten sth upโ€ Mean?

โ€œFatten sth upโ€ means to make something or someone fatter or to add more detail or content to something to make it fuller or richer.

Introduction

The phrase โ€œfatten sth upโ€ is a common phrasal verb used in English with two main meanings. Firstly, it can refer to making a person, animal, or object physically fatter by adding weight. Secondly, it is often used metaphorically to describe adding more information, detail, or content to something, such as a story, report, or argument. Understanding the โ€œfatten sth up meaningโ€ helps learners use this phrase appropriately in different contexts. This guide explains how to use the phrasal verb clearly, with examples and common mistakes to avoid.

Quick Info Box

  • Phrasal verb: fatten something up
  • Type: Transitive
  • Level: B2
  • Short meaning: To make something or someone fatter or fuller, or to add more details or content

Structure (Grammar Rules)

โ€œFatten sth upโ€ is a separable phrasal verb. This means you can place the object between the verb and the particle or after the particle.

  • Verb + object + particle: fatten the pig up
  • Verb + particle + object: fatten up the pig

Both structures are correct and commonly used.

How to Use โ€œFatten sth upโ€?

Use โ€œfatten sth upโ€ when talking about increasing someoneโ€™s or somethingโ€™s weight, especially animals or people. It is also used when you want to add more information or detail to something to make it more interesting or complete.

For example, a farmer might fatten up livestock before selling it. A writer might fatten up an article by adding more examples and explanations.

Examples

Here are some natural sentences using โ€œfatten sth up in a sentenceโ€:

  • The farmer is trying to fatten up the cows before winter.
  • She decided to fatten up her resume by including more volunteer work.
  • We need to fatten up the report with additional data and analysis.
  • He spent months fattening up his savings before buying a house.

Common Mistakes

People often confuse the placement of the object or use the verb incorrectly.

  • Incorrect: She fatten up the dog. (Missing object placement)
  • Correct: She fattened the dog up. (Correct separable form)
  • Incorrect: I want to fatten up my essay it. (Wrong object placement)
  • Correct: I want to fatten my essay up. (Correct separable form)

Differences / Synonyms

Similar phrasal verbs include โ€œbulk upโ€ and โ€œpad out.โ€

  • Bulk up usually refers to gaining muscle or increasing size, often used in fitness contexts.
  • Pad out means to add unnecessary details to make something longer, often with a negative tone.
  • Fatten sth up can be neutral or positive, focusing on making something fuller or more substantial.

Common Collocations

โ€œFatten sth upโ€ is often used with certain objects. Here are common collocations and their meanings:

  • Livestock: Animals like cows or pigs made fatter before sale.
  • Resume/CV: Adding more details to make it stronger.
  • Report/Article: Adding information to make it more detailed.
  • Story: Adding extra events or descriptions to make it longer or more interesting.

Related Phrasal Verbs

Here are related phrasal verbs of fatten sth up:

Real-life Dialogue

Here is a short conversation using โ€œfatten sth upโ€:

Anna: I think my presentation is too short.

Ben: You should fatten it up with more examples and facts.

Anna: Good idea! That will make it clearer and more convincing.

Practice

Choose the correct sentence:

  • A) She is fattening up the dog before the show.
  • B) She is fattening the dog before up the show.
  • C) She is fattening the dog before the show up.

Answer: A

FAQs

  • Q: Can โ€œfatten sth upโ€ be used for people?

    A: Yes, it can mean helping someone gain weight.

  • Q: Is โ€œfatten sth upโ€ always about weight?

    A: No, it can also mean adding more detail or content.

  • Q: Can I separate the object from the phrasal verb?

    A: Yes, โ€œfatten the pig upโ€ and โ€œfatten up the pigโ€ are both correct.

  • Q: Is โ€œfatten sth upโ€ formal?

    A: It is neutral and can be used in both formal and informal situations.

  • Q: What is a synonym for โ€œfatten sth upโ€ when talking about writing?

    A: โ€œPad outโ€ or โ€œexpandโ€ can be used, but โ€œpad outโ€ may sound negative.

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