"Pineapple upside" refers to the popular dessert known as pineapple upside-down cake. It typically features a caramelized pineapple topping with cherries and a buttery cake batter that is baked and then flipped over to reveal the sweet and tangy pineapple on top. The combination of flavors and the unique presentation make it a delightful treat for pineapple lovers. 🍍🔃