In everyday English conversations, native speakers often use idioms to talk about someone who has gone beyond what is acceptable. Maybe someone makes an inappropriate comment, takes advantage of a situation, or keeps doing something even after they’ve been warned to stop.

For example, if someone tells you “you’re out of line” or “you’re playing with fire,” they’re not talking about standing in a line or actual fire. These expressions are figurative ways to talk about inappropriate behavior, boundaries, and consequences.

In this lesson, you’ll learn 8 natural English idioms and expressions for talking about someone who goes too far, along with examples so you can see how they’re used in real-life situations.

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8 Idioms for When Someone Goes Too Far

Here are eight common expressions you can use when someone behaves inappropriately, crosses a boundary, or takes things too far.

1. 🚫 To Be Out of Line

Definition: To say or do something inappropriate, disrespectful, or unacceptable.

Example: What you said to your coworker was out of line. You owe her an apology.

2. 🛑 To Cross the Line

Definition: To go beyond what is considered acceptable or appropriate.

Example: Joking around is fine, but making fun of his family crossed the line.

3. 😵 To Get Carried Away

Definition: To become so excited, emotional, or involved in something that you go further than you intended.

Example: I’m sorry about what I said. I was frustrated and got carried away.

4. 😲 To Have Some Nerve

Definition: Used to express surprise or anger when someone behaves in a very rude, bold, or disrespectful way.

Example: He has some nerve taking credit for my work and then asking me for another favor!

5. ⚠️ To Push Your Luck

Definition: To continue taking risks or behaving in a certain way when you have already been fortunate to avoid negative consequences.

Example: You’ve already been late twice this week. Don’t push your luck by showing up late again tomorrow.

6. 📈 To Go Too Far

Definition: To do or say more than is reasonable, acceptable, or appropriate.

Example: I understand why you were angry, but insulting him in front of everyone went too far.

7. 🔥 To Play With Fire

Definition: To do something risky or dangerous that could cause serious problems.

Example: You’re playing with fire if you keep lying to your boss about why you’re missing work.

8. 🧊 To Be on Thin Ice

Definition: To be in a risky situation where one more mistake could lead to trouble or negative consequences.

Example: After missing three important deadlines, he’s on thin ice with his manager.

Watch the Idioms in Action

Now it’s time to hear these expressions used naturally in conversation.

Watch the short skit below as one coworker approaches another coworker who took credit for her idea during a meeting. Notice how the expressions are used as the conversation gets more heated.

🌟 To Wrap Things Up

Knowing how to talk about boundaries and inappropriate behavior can help you sound much more natural in everyday English. The key is not just understanding these expressions, but feeling confident enough to use them in the right situation.

Now you have 8 natural idioms and expressions that native speakers use when someone goes too far, crosses a boundary, or risks getting into trouble. Try using them the next time you talk about a difficult coworker, an awkward situation, or someone who just doesn’t know when to stop.

Ready to Master Using English Idioms?

If you’d like more support practicing these idioms — and many more — I’d love to invite you to join my English Fluency Community. Inside the community, you’ll get full access to my English Idioms Course, along with tools to help you actually use what you learn.

📘 What Does the Idioms Course Include?

Each lesson includes everything you need to learn, understand, and practice the idioms in context:

🃏 Digital and printable flashcards to review the idioms
🧩 A vocabulary quiz to check your understanding
📖 A reading quiz to see the idioms used in context
🎧 A listening quiz to practice understanding the idioms in natural English
✍️ A writing assignment to practice using the idioms yourself
🗣️ A speaking activity with Peach, my AI Chatbot, to practice using the idioms in conversation

🍑 The English Fluency Community Also Includes:

✔️ Access to all my English courses (updated regularly)
✔️ Daily English practice activities (listening, reading, writing, and speaking)
✔️ Unlimited access to the Peach AI Chatbot
✔️ A FREE ticket to all premium events

💸 Unlock all of this for just $5 a month.
👉Join the Fluency Community here

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