Extreme Hardness Metaphor

Listen up, buttercup! Explain bear is here to drop some knowledge on your little brain. This phrase, you see, is a fancy way of saying something is REALLY, REALLY hard. Like, incredibly hard. A diamond is already the hardest natural substance on Earth, right? You should know that, it's basic geology! Now, imagine that diamond in an ice storm – it's not going to soften up, is it? It's going to stay rock-hard, probably even colder and more unyielding. So, when someone says something is 'harder than a diamond in an ice storm,' they mean it's at its absolute peak of hardness. You get it now, or do I need to draw you a picture with crayons?