Meh
That's just it, LOLCATS speak is what a whole bunch of friends think is funny to speak in all the time.
Meh doesn't mean me. It it kind of like saying, whatever or I don't care.
I see meh all the time, but never in place of me. As for hai/bai, well, I honestly don't know. I use those all the time in place of hi/bye, but not because I think it's funny.
Yeah, like people who use Emotiocons, but without being serious. Things like OHAI. Some people OVERUSE it, which is basically really what I'm getting at here. Like I said, the people who talk liek diz all the time.