Hmmm, Banana Boat Rat, ok is this another one of those viral videos like Hamster on a Piano? Searching for "Banana Boat Rat" (with quotations) on Youtube doesn't yield to what I expect. So I decided further to investigate. And look what we have here! It could be an idiom as to the hunt was "as cunning as a banana boat rat". But I could be wrong. What could you be searching? Please give me a hint so I could help you on Banana Boat Rat.
Thanks to the anonymous someone for giving us a site that is very intriguing. What do you think? www.bananaboatrat.com? What is it? I myself am curious!
Another version is by huliq.com, read more here.