Kylie Jenner's enigmatic tweet

What does it mean? Is it some kind of coded message from the teenage reality TV star?

Perhaps something to do with this?

As usual, Twitter had some thoughts:

@KylieJenner you too ??

— kay (@kaseystrauss_) July 21, 2012

“@KylieJenner: ?” ???

— metroEr (@meowerin_) July 21, 2012

@KylieJenner ??

— Omar Hunter (@DumontOmar) July 21, 2012

@KylieJenner ???????

— Livia Tandy (@Livia773) July 21, 2012

And, of course:

https://twitter.com/daniellehorann/status/226712059780423680