⚡ Quick Meaning
To put your foot in your mouth means to say something embarrassing by mistake.
I called my teacher "Mum" in front of the whole class. I really put my foot in my mouth.
People also say foot in mouth, or put your foot in it.
🎭 Wait... Why a Foot?
Picture it. A foot in a mouth is a silly sight. And you cannot say anything else with a foot in your mouth!
That is the point. It is the moment when you say the wrong thing and wish you could stop the words.
🎬 Picture the Situation
Leo meets the new teacher. He says, "Hello, Mrs Brown!"
Her name is Mrs Green. Leo's face turns red.
He has put his foot in his mouth.
🗣️ Natural Examples
Sorry, I put my foot in my mouth. I did not mean it that way.
He put his foot in his mouth when he asked about the trip that was cancelled.
Try not to put your foot in your mouth at the new school.
She put her foot in her mouth by getting his name wrong.
I put my foot in my mouth again and then I said sorry.
💬 In a Conversation
Sam: I told my teacher, "Great lesson! Last week's was so boring."
Mia: You put your foot in your mouth.
Sam: I know. Now both feet are in.
Mia: Maybe say sorry.
🧭 When Do You Use It?
Use it when:
- you said something awkward by accident
- you want to say sorry for a slip
- you tell a funny story about an embarrassing moment
It is informal, so it suits friends and casual speech better than a school essay.
⚠️ Common Mistakes
It is about words, not feet.
❌ I put my foot in my mouth when I kicked the ball.
✅ I put my foot in my mouth when I said the wrong thing.
Keep it in, not into.
❌ put my foot into my mouth
✅ put my foot in my mouth
It is a mistake, not a rude choice.
❌ He put his foot in his mouth to hurt her.
✅ He put his foot in his mouth by accident.
🕵️ Where Did It Come From?
Mental Floss says this idiom probably grew from an older phrase, put your foot in it. That one was printed in 1796 in a play by George Brewer.
The version with mouth is first found in print in 1879, in a newspaper called the Waterloo Courier.
The true origin is a bit murky. We do not know for sure if the mouth version grew from the older one.
💡 The OddLingo Trick
Picture a very silly drawing: a foot where your words should be.
If you put your foot in your mouth, stop talking and say sorry.