Spam isn’t a secret code. It’s a joke that got too famous to stop. The best origin stories often are just accidents and inside jokes that grew up.
So, relax. You don’t need to know a fancy acronym to understand spam. You just need to appreciate that a canned meat product from the 1930s and a bunch of comedians singing in the 1970s are the reason your junk folder exists. That’s just magic, isn’t it?
And if anyone asks you what spam stands for, just smile and say, “It stands for a very loud, very weird song about breakfast.” Then watch their face light up with confusion and delight.