I think you are standing on quicksand. I wonder where the heck you get your knowledge from. Let me explain.
Nunchaku, originally called "da pan long kun"大盘龙棍, meaning great coiled dragon stick was invented by the first Song emperor Tai Zhu, Zhao Kuang Yin (宋太祖赵匡胤).
The weapon composed of one long stick and a short stick connected by horse hair. It was commonly used in wars against cavalry to trap horse legs. The weapon eventually evolved into a short range weapon as seen in our present day nunchaku.
The nunchaks were then introduced to Japan through Okinawa by immigrants from China. The Japanese word nun-cha-ku itself comes from the Hokkien (Min Nan) word nng-chiat-kun (two-section-baton).
Another proof that the nunchaks originate from China is that it's other name in Japanese called 'Shoshikon' came from the Chinese name '哨子棍', another name used for the weapon in ancient China.
That nunchaku was copied from a Chinese weapon brought to Okinawa by Chinese immigrants was even supported by experts such as Miyagi and Ikeda.
What you wrote is entirely possible although the Chinese version is different. It consist of 2 sections of different lengths.
The actual meaning of the word "nunchaku" is still debatable. It could be, like you said, a translation from Hokkien but it could also mean "2 equal length of about a foot each" in Japanese, which aptly describes the weapon.
Other than strong Chinese influence, the EXACT meanings and origins of many Okinawan martial arts and weapons are lost.
If Bruce Lee wanted to use the nunchaku's Japanese origins to humiliate the Japs (like Ramseth suggested), he picked the wrong weapon. The nunchaku was never a popular weapon even in Okinawa. It was deemed to be ineffective in combat, especially against other weapons. This view is cemented by the fact that unlike other weapons like the tonfa or sai, there is NO formalized traditional kata for the nunchaku.