Hilariously, in Singapore jackfruit is banned on public transport because it smells so awful. I tried some of this though and it it's not a flavor that I had tasted before. Hard to describe but really good if you could hold your nose for the smell.
Jackfruit is amazing too though. It's used a lot as a "meat" substitute. For example, jackfruit curry is delicious, nutritious and hearty.
Jackfruit and palm fruit in curries are some of my favorites.