Popcorn braces

The feeling you get when you get kernals stuck between your teeth while eating popcorn.

Wow, this kernal is so stuck I feel like I have popcorn braces!

Popcorn Thunder

Thunder that certainly sounds like popcorn in a microwave. The building up of suspense such as crackling, popping, loud, etc.

I was sleeping last night peacefully, but I awoke to Popcorn Thunder.