Huh. I think the term would make more sense if it meant what I said, but I guess it means however people use it to mean. Shouldn't it have a word that means "

Huh. I think the term would make more sense if it meant what I said, but I guess it means however people use it to mean. Shouldn't it have a word that means "after the fact/event" instead of like "affecting something that happened before"? Or like, "(age *4 +3)rd trimester"? Oh well, the way slang meanings arise is strange and inscrutable. Or not really inscrutable, but not understood by me personally.