The fruit known as Southeast Asia's 'king of fruits' due to its strong smell and flavour is the durian. It is a spiky fruit with a pungent odour that can be either loved or hated. Durian is highly prized in Southeast Asia, where it is considered a delicacy and used in various dishes, desserts, and even in ice creams. Despite its strong smell, durian is known for its sweet, creamy, and nutty taste, which is why it remains a favorite among many people in the region.