"what appears to be a guitar except that it can only be played by trained assassins. It is so electrifyingly rockin' that if you aren't a ninja, your head will explode."-Ask A Ninja.

Or

what you call a person that plays guitar so awesomely rockin' that they have to be a ninja to play it.

lil mad is like big mad but the opposite, you mad but not mad to the extent of pullin somthin