Английский словарь американских идиом - run riot

{v. phr.} 1. To act freely or wildly; not control yourself. * /The monkey got out of his cage and ran riot in the pet shop./ * /John let his imagination run riot, thinking he was hunting lions in Africa./ 2. To be or grow in great numbers or large amounts. * /Daisies ran riot in the meadow./ Compare: RUN WILD.