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Phrase(s): tumble down
to fall down; to topple. • The old barn was so rickety that it almost tumbled down on its own. • The pile of books tumbled down all over the floor., Phrase(s): tumble someone or something down something
to tip or push someone or something down something. • Timmy tumbled his brother down the hill. • Ann tumbled her laundry down the chute.
McGrawhill's American Idioms And Phrasal Verbs