For no reason at all, I entered "Brand New World" into the Wikipedia and got the result of Old Fart (Wine). There is actually a French wine that is named "Old Fart."
Considering Sanji's "kuso-jiji" is often translated to Old Fart, it sort of puts the use of that term into a whole new light. Makes me wonder whether or not it was intentional (if not on Oda's part then on Stephen's or whoever it was to first use the translation)