fo shizzle my nizzo
The breakdown to this is the expressor to the expressee:  shizzle my nizzo! This means putting action upon any object.  Shizzle is the verb and Nizzo is the object of the verb.  The expressor is asking the expressee to "do something to something"!  Whatever it is and to what is up for purely speculative interpretation and depends on the linguistic conditions  and the situational environment of the moment.
Lord girlfriend, I haven't seen you for so long.  Come over here and "shizzle my nizzo"!