Jack Fruit is a VERY sticky fruit. I would say it is like a large Pineapple in the smell and how hard it is to cut Missing: star. The jackfruit (Artocarpus heterophyllus), also known as jack tree, jakfruit, or sometimes simply jack or jak, is. If you think all meat substitutes are awful, you don't know jack(fruit). relegated to a dust-topped can on the very back shelf at your neighborhood Asian market. You cut into it and its literally like glue is pouring out of the fruit.