directly translated this means "off the chain for shit" or something. of the chain is g-talk for something cool, and fo shizzle sort of means for real. So something that is off da chizzle fo shizzle is something that is REALLY cool.
Yo man, u see dat new flik at da AMC? Dat shiznit be off da chizzle fo shizzle!
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. PenguinBooks,1992. p. 38)