The Sushi Mac is the fast food delicacy of the urban cannibal necrophile. The product is made when the hungry gent (or lady) exhumes two male and one female fresh corpses (preferably a family). The product consists of the two pieces of man meat being sandwiched by the female's fish flaps when at the same time excreting the female's final monthly "tomato relish" as a topping. (If the woman died while pregnant the placenta can also be blended to make this relish). The "double cheese" is provided by scraping the final secretion from the inside of the deceased foreskins.
"Did you hear that Colin's family died in a car accident the other day?"
"Excellent! I could murder a Sushi Mac!"