you don’t know jack meaning

You Don't Know Jack (USA) (NDSi Enhanced)
You Don’t Know Jack (USA) (NDSi Enhanced)
Nintendo DS
You Don’t Know Jack (USA) (Disc 2)
You Don’t Know Jack (USA) (Disc 2)
PlayStation PSX
You Don't Know Jack (USA) (Disc 1)
You Don’t Know Jack (USA) (Disc 1)
PlayStation PSX