@H2O MAN,
Well, you see H20 man, the only time I've seen that term used (for your president), it's been by folk who are saying very insulting things, in a pretty nasty way. I've felt offended on his behalf, as it seems so rude & disrespectful.
OK, if you want, you may explain (very briefly, please) what it means & why you think it's & reasonable title to call President Obama by that name.
Personally, I think people would take your comments more seriously if you called him
President Obama, or just plain
Obama ... I know I would.
But let's not derail this thread, OK?