In the Brady Bunch movie, Greg Brady wants to be a rock star. He creates a stage presence/alter ego that goes by "Johnny Bravo." Johnny Bravo is this douchey guy that thinks he's cool but, in reality, is just just a douche.
When I was in graduate school, my friends and I would joke around and I'd act all douchey - and natually the moniker "Johnny Bravo" seemed appropriate and stuck.
Anyone who knows me knows that I have, over the years, made up various names for myself - Johnny XXX, Johnny Porn, Ron Jon Johnny, Johnny Two Times, Johnny Abs, etc. It's all done in fun and, contrary to what it seems, there's really no ego behind it. Just the opposite, the monikers are self-effacing. The premise is that the names are meant to be irreverant and retarded and just for fun. Anyone who really knows me knows this to be the case.
Through all of the nicknames, though, Johnny Bravo has always been a mainstay since, well, it was the first.
There is also a cartoon called "Johnny Bravo." This cartoon came about years after the Brady Bunch movie. Some people (even some on here) have assumed my screenname was a reference to the cartoon. Those people were wrong.