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1.
Not a toddler saying avalanche; the ava(wa)nche is the phenomenon by which the action of one girl crying triggers all those in close proximity to blubber as well for little to no reason.

Alternate spelling: avawahnche
Aww dude, it's an avawanche; what should we do?
What can we do? Start hugging!!
by comforter January 07, 2011