Poipole isn't really based off of anything, but it is mostly interpreted as a sticky friendly purple baby that is apparently another universe's starter, its name most likely comes from poison and pole (however I believe its name comes from poi, which is a native Hawaiian sticky sweet grayish purplish sauce, and I have no idea what pole is there for, but I'm pretty sure it just sounds good for a name). The design kind of looks like a syringe, that is pretty much all there is to say about it. And its Japanese name is Bebenomu, which also means baby. If you want a better description ask James Turner, the original designer of poipole.