Oh god, please don't make me push this thing across a canal on boats to reach the other side!
A Durian is an Asian fruit with spikes, and also it reeks of smelly socks. That's all.
Okay, they grow in the tropics and are as tasty as a Wumpa Fruit dipped in something sweet, it's tasty. But they're high up in the trees, and it's hard to reach up in them, sometimes they fall and bonk you in the head so you can say, "ouchie!" and they have spines aswell, just to rub salt into the wound. And they still smell. But once you get past all of that it tastes good.
In Super Mario Cloudy, you kick them across canals with boats in them to get a Shade Sprite, this takes forever and is super annoying, it cannot be picked up because it's spiny and it will hurt, so you kick it. Only Undefeatables can do this and suceed, those dang Pianta guys, Mario is not a middleman, get off your rump and do the work!
Durians were made when a doofus took a Soursop and did stuff to it, Smelly used Smell Manipulation with the Smell Masters to make it smell, then a seed was planted for them to grow into a strong tree, that, truly is all.