Top Definition
The onslaught of snack crumbs that collect at the bottom of the bag and their journey towards your face as you decide to eat them.
You want the snackalanche?

SNACKALANNNNNNCHE!

Can I have the snackalanche?

I hate the snackalanche, it's all crumbs and salt.

I LOVE the snackalanche! It's all crumbs and salt!
by Mahalawanda June 14, 2013

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