This idiom is a classic.
When it's raining, the rain is not just drizzling, it's POURING. It's like the sky is crying, and you're just standing there, holding an umbrella, feeling all dramatic and stuff.
It's not just a matter of, "Oh, it's a little rain." No, no, no. It's like, "IT'S RAINING, YOU HEAR THAT?"
This idiom is like the ultimate metaphor for when things just get too much. It's like life itself is just pouring all over your parade, and you can't even get a decent selfie with your hair looking good in the background.
But seriously, have you ever noticed how often people use this idiom? Like, it's always "when it's raining it's pouring." As if the rain is the only thing that's ever been known to be pouring.
Umbrella Safety Tips: Because You Never Know When It's Gonna Pour
Stay dry, stay witty.