Run riot
verb
To behave wildly or out of control.
The children will run riot if they're left without supervision.

Often appears as...
- children run riot
- fans run riot
verb
To grow or spread unchecked.
If left unpruned, the bushes will run riot over the landscape.

Often appears as...
- bushes run riot
- weed run riot
Usage tips
Technical
verb
To behave wildly or out of control.
The children will run riot if they're left without supervision.

Often appears as...
- children run riot
- fans run riot
verb
To grow or spread unchecked.
If left unpruned, the bushes will run riot over the landscape.

Often appears as...
- bushes run riot
- weed run riot
Usage tips
Technical
Definition 1 of 2

Lack of Control
Indicates a situation where people are losing their usual social or moral constraints.

After the football match, hooligans ran riot in the streets.
Child Behavior
Commonly used to describe unruly behavior of children, often playful and noisy.

The classroom was in chaos; the kids ran riot during the break.
Emotional Connotation
Suggests a negative reaction to a lack of structure or discipline.

Without strict guidelines, the meeting ran riot and nothing got done.
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