You have to use the German pronunciation to be completely correct: “Shnopps-ee-DAY-uhs”.
One feature of Schnapps-idees is that you can barely remember them the next morning.
Some barely stick around an hour. I was just thinking of something about five minutes ago, and I distinctly remember going through the cycle: inspiration, infatuation, deflation, then thinking, hey, at least I can list that in my blog. In the 2 minutes it took me to log in and pull up this draft, I completely forgot what it was.
But sometimes the darnedest things can come out of ridiculous fantasy. How else can you account for the inception of Snapchat?