Knictuckle waa finanka giraangiraha ay is beddelaan, badiyaa qaabka fargeeto. Farsamooyin sare iyo kuwa hoose waxay leeyihiin laba god oo ku yaal Kingpin, oo sanduuqa jilibka ayaa loo isticmaalaa in lagu fuulo giraangiraha. Labada lugood ee godadka PIN-ka ee isteerinka ayaa ku xidhan xargaha shaashadda ee loo yaqaan 'feedhka' ay ka mid yihiin darafyada labada dhinac ee xarkaha hore, oo u oggolaanaya giraangiraha hore ee xagal si ay uga takhalusaan xagal si ay u hayaan xagal si ay u hayaan xagal Si loo yareeyo xidhashada, nabarrada naxaasta ah ayaa lagu cadaadiyaa godka pin-ka jilibka, iyo karinta Si loo sameeyo isteerinka dabacsan, waxa loo habeeyaa inta u dhexeysa qeybta hoose ee isteerinka jilibka iyo alwaaxda hore ee ammadda hore. Gawaarida is-waafajinta ayaa sidoo kale lagu bixiyaa inta udhaxeysa dhegta iyo qaybta loo yaqaan 'the pist' oo ka mid ah isteerinka jilibku inuu hagaajiyo farqiga u dhexeeya.
