What is a jailbroken iPhone? - 1

My son jailbroken his iPhone, what does that mean and how did he do it because I think he's lying to me

Is google down today? He can get games and other stuff for free. There's a chance that his iPhone can screw up, but its rare.

He's lying to you

I'd take the phone to the nearest apple store and ask them to unjailbreak

This simply means allowing the use of third party applications to further customise your iphone such as custom sliders and moving wallpapers. This can also include improvements to menus and drop downs as well as the home screen customisation. This is done simply through a program on a computer.