Idioms and expressions play a crucial role in every language. They bring life to conversations and make you sound more authentic when speaking English. Whether you’re having a casual chat with friends, sending a text, or engaging in small talk, these 20 idioms will enhance your English skills and make you sound more fluent.
Common Idioms and Expressions for Casual Conversations
1. Break the ice
Meaning: To start a conversation in a social setting. Example: «John told a funny joke to break the ice at the meeting.»
Use it when meeting new people or starting a conversation in an awkward or unfamiliar setting.
- At a work event: «I told a funny story to break the ice with my new colleagues.»
Common Idioms and Expressions for Casual Conversations
2. Hit the nail on the head
Meaning: To be exactly right about something. Example: «You hit the nail on the head when you said that learning English takes practice.»
Use it when someone makes an accurate statement or assessment.
- During a discussion: «You hit the nail on the head when you said time management is key to learning English.»
Common Idioms and Expressions for Casual Conversations
3. Spill the beans
Meaning: To reveal a secret. Example: «Tom accidentally spilled the beans about the surprise party.»
Use it when someone reveals a secret, intentionally or accidentally.
- Talking about a surprise party: «He spilled the beans about the surprise before we even got there!»

Common Idioms and Expressions for Casual Conversations
4. Bite the bullet
Meaning: To endure something difficult or unpleasant. Example: «I hate going to the dentist, but I need to bite the bullet and go.»
Use it when you need to endure something unpleasant.
- Before a dentist visit: «I don’t want to go, but I have to bite the bullet and do it.»
5. Burn the midnight oil
Meaning: To work late into the night. Example: «She burned the midnight oil to finish her project on time.»
Use it when working late at night.
- Studying for an exam: «I had to burn the midnight oil to finish my assignment on time.»
Common Idioms and Expressions for Casual Conversations
6. Let the cat out of the bag
Meaning: To accidentally reveal a secret. Example: «Sarah let the cat out of the bag about our vacation plans.»
Use it when someone unintentionally reveals a secret.
- Before a wedding proposal: «She let the cat out of the bag about the engagement plans!»

Common Idioms and Expressions for Casual Conversations
7. Throw in the towel
Meaning: To give up or surrender. Example: «After failing three times, he refused to throw in the towel and kept trying.»
Use it when someone gives up on something.
- Talking about a difficult task: «After several failed attempts, he finally threw in the towel.»
Common Idioms and Expressions for Casual Conversations
8. The ball is in your court
Meaning: It’s your turn to take action. Example: «I’ve given you all the information, so now the ball is in your court.»
Use it when it’s someone else’s turn to take action.
- At work: «I’ve given you all the details. Now the ball is in your court.»
Common Idioms and Expressions for Casual Conversations
9. Piece of cake
Meaning: Something very easy to do. Example: «The exam was a piece of cake!»
Use it to describe something easy.
- After a simple task: «That test was a piece of cake!»
Common Idioms and Expressions for Casual Conversations
10. Hit the road
Meaning: To leave or start a journey. Example: «We need to hit the road early to avoid traffic.»
Use it when leaving or starting a journey.
- Before a trip: «We need to hit the road early to avoid traffic.»
Common Idioms and Expressions for Casual Conversations
11. Under the weather
Meaning: Feeling sick or unwell. Example: «I’m feeling a bit under the weather today.»
Use it when feeling unwell.
- Explaining an absence: «I couldn’t go to work yesterday; I was feeling under the weather.»
Common Idioms and Expressions for Casual Conversations
12. A blessing in disguise
Meaning: Something that seems bad but turns out to be good. Example: «Losing my job was a blessing in disguise because I found a better one.»
Use it when something that seemed bad turns out well.
- Losing a job but finding a better one: «Getting laid off was a blessing in disguise!»
Common Idioms and Expressions for Casual Conversations
13. Put all your eggs in one basket
Meaning: To risk everything on one opportunity. Example: «You shouldn’t put all your eggs in one basket—try multiple investments.»
Use it when talking about risk.
- About investments: «Don’t put all your eggs in one basket; diversify your portfolio.»
Common Idioms and Expressions for Casual Conversations
14. Bite off more than you can chew
Meaning: To take on too much responsibility. Example: «I bit off more than I could chew when I agreed to organize the whole event by myself.»
Use it when someone takes on too much.
- On taking extra work: «I agreed to two big projects, and now I’ve bitten off more than I can chew.»
Common Idioms and Expressions for Casual Conversations
15. Kill two birds with one stone
Meaning: To accomplish two things at once. Example: «By studying English while commuting, you can kill two birds with one stone.»
Use it when accomplishing two things at once.
- While exercising and listening to a podcast: «Walking to work kills two birds with one stone!»
Common Idioms and Expressions for Casual Conversations
16. On the same page
Meaning: To be in agreement. Example: «Before we make a decision, let’s make sure we’re on the same page.»
Use it when agreeing with someone.
- During a team meeting: «Let’s make sure we’re on the same page before we present this.»
Common Idioms and Expressions for Casual Conversations
17. Cost an arm and a leg
Meaning: Something very expensive. Example: «That designer bag costs an arm and a leg!»
Use it when something is expensive.
- Talking about a luxury car: «That car costs an arm and a leg!»
Common Idioms and Expressions for Casual Conversations
18. Wrap your head around something
Meaning: To understand something difficult. Example: «It took me a while to wrap my head around the new software.»
Use it when trying to understand something complicated.
- Learning a new skill: «It took me a while to wrap my head around coding.»
Common Idioms and Expressions for Casual Conversations
19. Give someone the cold shoulder
Meaning: To ignore someone. Example: «I don’t know why she’s giving me the cold shoulder.»
Use it when ignoring someone intentionally.
- After an argument: «Ever since our fight, she’s been giving me the cold shoulder.»
Common Idioms and Expressions for Casual Conversations
20. Pull someone’s leg
Meaning: To joke or tease someone playfully. Example: «I thought he was serious, but he was just pulling my leg.»
Use it when joking or teasing someone playfully.
- After telling a fake story: «I’m just pulling your leg. That never actually happened!»
Common Idioms and Expressions for Casual Conversations
Using idioms can help you sound more natural and fluent in English. Give them a try next time you need to speak English, and watch people be amazed by your speaking skills!
Which one is your favorite? Let us know in the comments!
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