When he says "use your loaf" (= use your head), the character Ginger, an English gangster in the Michael Caine mould, employs Cockney rhyming slang, not an idiom many American viewers would be familiar with. Cockney rhyming slang originated in London among the criminal underworld as a form of spoken cipher, replacing words with unrelated but rhyming phrases, which were then often shortened to remove the rhyming element, e.g. loaf (loaf of bread) = head, dog (dog and bone) = telephone, syrup (syrup of figs) = wig, trouble (trouble and strife) = wife, brown bread = dead, septic (septic tank) = Yank, etc.
Rockford's grill is a Cookmaster 24" with the adjustable grill.
Jean-Claude Killy is a French former World Cup alpine ski racer. He dominated the sport in the late 1960s, and was a triple Olympic champion, winning the three alpine events at the 1968 Winter Olympics, becoming the most successful athlete there. He also won the first two World Cup titles, in 1967 and 1968.