• the apple, king of fruits
• avocados are named as "King of the Fruit" by nutritionists all over the world
• durian is the king of fruits
• mangoes are often referred to as the ‘King of the Fruits’, and it’s not hard to see why
• the pineapple became the ‘King’ of the fruits with its leaves thought of as a leafy crown

Calling avocados, the most atypical fruit that's widely consumed, the 'king of the fruits' is legitimately cracked. Nutritionist brain. It's like calling licorice the 'king of vegetables.'

But maybe we should start using the word "king" more often to refer to atypical, uncommon specimens that could not survive in nature and have misshapen proportions guided by generations of inbreeding.