run riot
idiomPart ofriot
run riot — idiom
1. to behave in an uncontrolled, wild way, or for something to develop or spread wi
1.idiom
Definition
to behave in an uncontrolled, wild way, or for something to develop or spread without any limits
Example
The children ran riot in the playground while the teacher was on the phone.
The weeds in the old garden have run riot and now cover every flower bed completely.