Literally, your 'daddy' is your father, but in this phrase 'daddy' refers to any man who takes care of you. And 'sugar' is something that makes things sweet and enjoyable. So a 'sugar daddy' is a man who gives woman lots of enjoyable things, like cars and diamonds and money. eg: My sugar daddy bought me a new car! note: Daddy是爸爸的意思,在这里用来形容那些照顾你的男人。sugar用来说很甜蜜、享受的东西。因此“蜜糖老爹”就是给女人很多礼物的人。