The idiom "living in cloud cuckooland" means that someone is being unrealistic or having unrealistic expectations about something. It implies that the person is not grounded in reality and is living in a fantasy world.
You can use this idiom when you want to express that someone's ideas or plans are not practical or realistic. For example, if someone says they are going to quit their job and become a famous actor without any training or experience, you could say, "You're living in cloud cuckooland if you think that's going to happen overnight."
The origin of this idiom is from the play "The Birds" by Aristophanes, where the birds build a city in the clouds called "Cloud Cuckoo Land." It has since been used to describe people who have unrealistic ideas or expectations.
• My friend believes that aliens will come to Earth and save us from our problems, he's living in cloud cuckooland.
• The politician's plan to solve the country's economic crisis by printing more money is living in cloud cuckooland.
• The author's notion that their book will become an instant bestseller without any marketing efforts is living in cloud cuckooland.
• The scientist's hypothesis that they have discovered a cure for all diseases is living in cloud cuckooland.
• The company's CEO's idea to double profits in just one year without any new investments is living in cloud cuckooland.
• She thinks she can fly like a bird, she's living in cloud cuckooland.
• My friend is living in cloud cuckooland if she believes that her boss will give her a promotion without working hard.
• If you think you can become a millionaire by playing the lottery, you're living in cloud cuckooland.
• It's living in cloud cuckooland to ignore the scientific evidence and claim that climate change is a hoax.
• The politician's promise to lower taxes without affecting public services is living in cloud cuckooland.
• The CEO's idea of doubling revenue without investing in new products or marketing is living in cloud cuckooland.
• She's living in cloud cuckooland if she thinks she can pass the exam without studying.