Okay, I know this is kind of lame but I used to only see people post "YGM!" to each other after the weekend that one of them would get married...so I thought it meant "You got married!"
And one week we had two knottie brides that had the same wedding date "YGM" each other and I totally thought that was cute.
Now I discover it means "You Got Mail."
Well, to me, it'll always mean "You Got Married!"
So there.