roofalanche

A very large, heavy, deadly mass of snow falling off a large roof at once, destroying all below, and generally causing panic when the house shakes.

Hannah: Honey, what the heck was that?

Stanley: Ah, nothing.. go back to sleep, it was just a roofalanche. no worries...

by horatio Vermin December 15, 2008

Rockalanche

The falling of large quantities of rock

The rockalanche buried three cars on the mountain road.

by Mttzzzz December 20, 2010