Citrus big fruit is a term used to describe two types of large citrus fruits: the POMELO (6 letters) and the ugli (4 letters). The POMELO is a large citrus fruit that is native to Southeast Asia and is related to the grapefruit. It has a thick, yellow-green rind and a sweet, juicy flesh. The ugli is a hybrid citrus fruit that is a cross between a tangerine, an orange, and a grapefruit. It has a thick, bumpy, yellow-green rind and a sweet, juicy flesh. Both fruits are popular in many cuisines around the world and are often used in salads, desserts, and drinks.