Have ants in your pants
/hæv ænts ɪn jɔː pænts/informalUK · US
What does “Have ants in your pants” mean?
Have ants in your pants means to be too restless or excited to sit still
A child who keeps getting out of their seat before a birthday party might have ants in their pants. The phrase describes the movement more than the reason for it.
It is usually light-hearted. Avoid using it to dismiss someone’s discomfort or a genuine difficulty with sitting still.
When do people say it?
A playful description of someone who keeps moving. Often said about children, but it can sound teasing or impatient when directed at an adult.
“Leo had ants in his pants while we waited for the party to start.”
Is it formal or informal?
Register: informal. It is most at home in everyday conversation rather than formal writing. Most common in UK and US.
Where does it come from?
The image is of insects inside your clothing making you wriggle. It captures restlessness without suggesting there are real ants.
Origin confidence: Disputed; treat with caution
How do you say “Have ants in your pants” in other languages?
Last updated 2026-11-13