I was able to find the lyrics of "The friends of Mr. Cairo":
From Chicago to Hong Kong
Via Istanbul the Talking Tong
I would very much appreciate if someone could tell me what's meant by "Talking Tong".
Thanks in advance.
A Tong is a type of organization, described as secret societies (like a Lodge) or sworn brotherhoods and are often tied to criminal activity.
Within the lyrics the tong is one of a number of criminal elements referenced. The "talking tong" is a meaningless phrase to achieve alliteration and rhythm in the song:
From chicago to hong kong
via istanbul the talking tong