
🗓️ Idiom: Fall Flat (Phrasal Verb)
💬 Meaning
- Fail to have the desired effect.
- Be unsuccessful, especially when trying to impress or entertain.
🧠 Example Sentences
- His joke fell flat during the presentation, and no one laughed.
- The product launch fell flat because the audience wasn’t excited.
- Her sales pitch fell flat, and the client decided not to invest.
🏛️ Origin
This idiom comes from the theatre world. A performance or joke that “falls flat” fails to get a reaction—like a note that is off-key or a performance that lands with no energy. It suggests something that doesn’t rise or succeed as planned.
📝 Practice Exercises
1. Fill in the blank:
The speaker’s attempt at humor ____________, and the room stayed silent.
Answer
fell flat
2. Choose the best meaning of “fall flat”:
a) Succeed greatly
b) Fail to impress
c) Create strong emotions
Answer
b) Fail to impress
3. Change the sentence using “fall flat”:
“The manager’s speech didn’t excite the team at all.”
Answer
The manager’s speech fell flat.
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Rob is a CELTA qualified English teacher with 15 years of international experience. He has a BSc and PGDip from Loughborough and St Andrews universities in the UK. He has taught in Thailand and Saudi Arabia and now works with professionals worldwide.

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