do-not-touch rule

noun
UK /ˌduː nɒt ˈtʌtʃ ruːl/
US /ˌduː nɑːt ˈtʌtʃ ruːl/

A rule that says you must not touch something.

The museum has a do-not-touch rule for all the old statues.


OTHER MEANINGS

2. A safety instruction telling people to keep their hands away from something dangerous.

The do-not-touch rule on the machine kept the workers safe.

3. A strict boundary in a relationship about what is not allowed.

They set a do-not-touch rule about each other's phones.

4. A computer setting that stops users from changing certain files.

The system's do-not-touch rule protects the important folders.