avalanche
noun
a large mass of snow, ice, etc., detached from a mountain slope and sliding or falling suddenly downward.
Used to describe actions that started in the past and continue into or have direct relevance to the present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Slates and tiles have avalanched into the street, or the roof itself is entire, but has dropped sideways over the ruin below as a drunken cap over the dissolute.
From Old Junk by S. K. (Samuel Kerkham) Ratcliffe