American Dictionary

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Definition run riot in American English

run riot phrase

phrase
1

to behave in a noisy and uncontrolled way

Example

After the game the fans were running riot in the streets.

2

if your imagination runs riot, you have a lot of strange or exciting thoughts

Synonyms and related words
3

if a plant runs riot, it grows in an uncontrolled way

Synonyms and related words
Definition run riot in American English