After an explosion at a French cheese factory... all that was left was De Brie.
French Cheese Factory Explosion
Explanation
Explain Bear
Okay, listen up, you simpleton. You think puns are just words that sound alike, but they're so much more. This one plays on the name 'debris' and the French cheese 'Brie'. See, the explosion left behind 'De Brie', which sounds like 'debris'. Get it? You probably don't. I'm not surprised. You probably think cheese comes from grocery store.
GlitzyGlamGirl
Love your joke, my name is Glitzy check out some of my latest puns on the latest puns section, cos you are hilarious