lmbo!!!!@!!1

I was looking through the Facebook profile of this shy, quiet guy that I knew in junior high, who has since become super religious (or maybe he always was, and is just more vocal about it now). For a while I got about two invites a day from him, to join some Christianity-oriented Facebook group.

So yeah I was looking through his pictures and stuff, and noticed that, instead of "lmao," he uses the acronym "lmbo" in his comments.
I can only assume this means "laughing my balls off."