Linux box is a type of "box" that runs... linux, surprise surprise.

A box is geek speak for a computer. It's based on the fact that no matter what marketing spin and terrible contoured shapes corporations put on computers, they are still basically beige boxes.

Music so good it could elicit sexual arousal.

An XBox modified to use Linux as it's OS. Hard to do, hard to keep.

An X-Box that runs Linux. This was unintentional by Microsoft, and now it is to their own faults that their only game console promotes another OS company. Ha ha. Of course, some fiddling needs to be done to the Sex-Box that only linux geeks would know how or bother to do.