Fo shizzle my nizzle is the same as saying 'for sure my bro!',
or "you know it my friend".
However, the term is literally derived from 'for sure my nigg@'.
Sure = shiz = shizzle.
Nigg@ = nizz =...
The term "fo" may be inarticulate slang of the word "for".As an acronym, it can be foreign office flight officer (aviation) Formula One Factory Outlet (UK) Force Ouvrière (French labor union)