n. , slang , informal The most important, largest thing, person or animal in a congregation of similar persons, animals, or objects. The whale is the big daddy of everything that swims in the ocean. The H-bomb is the big daddy of all modern weapons. Al Capone was the big daddy of organized crime in Chicago during Prohibition.
BIG DADDY
Meaning of BIG DADDY in English
American idioms English vocabulary. Английский словарь американских идиом. 2012