Originally Posted by
dilettante
It's funny how many words and phrases, admittedly mostly idiom, younger people don't seem to understand or even be aware of. Of course "younger" can be a pretty relative thing too.
I was talking with my son, his wife, and a couple they know. All of them are 36 to 39 years old. The topic was emergency preparedness, and I had to keep guiding it back toward practical things like weather emergencies and power outages rather than more fanciful SHTF which I suppose are more fun (?) to talk about.
At some point I said something like "Well when the balloon goes up you'll want to know where your keys are" and 3 of the 4 started side-eyeing and giggling. They had never heard this before.
I thought that idiom was pretty common currency, but perhaps that isn't the case any longer.