A hyperactive term for something/someone that is "the rocker, awesomely awesome, etc."
Normally used as a joke; pretending to be someone who cannot spell, and is so hyper beyond reasoning that they just smack the keyboard a few times and whatever comes out IS.
...And then there are the serious people.
person: omgz Your site is teh r0x0rrz!1 xD =D
other person: xD omgz thankers!1! X3 n_n