foodalanche 

An occurrence during the process of opening a fridge or similar container and having all the food fall on top of you.

"OH MY GOD, FOODALANCHHHHEEE~" *squished*

foodalanche by Aora September 2, 2005

fogalanche 

A large mass of condensation appearing to flow like an avalanche down a hillside.

When I looked up the mountain I thought I was a dead man, but it turned out it was only a fogalanche.

fogalanche by SWilsonMc May 2, 2008