If the devil is in the details, you're one hell of a guy, Howie.OK... The "Big Mac" sandwich wasn't introduced until 1967. It is essentially a rip off of the Big Boy sandwich, which was introduced at Bob Wian's "Bob's Pantry" (later to become the Bob's Big Boy franchise) restaurant in 1937. So... he's likely calling the local Big Boy franchise for a "Big Boy" and fries.
And a bourbon float sounds absolutely nasty (I don't like whiskey no matter what you call it so...).