big daddy

plural big daddies

1. informalA man of importance by reason of power, size or seniority.

   Synonyms: baron, big cheese, big enchilada, big gun, big kahuna, big man, big name, big noise

2. informalIn the southern United States, the male head of a household; sometimes a grandfather.
3. informalA stud; a handsome, well-built man.
4. figurativelyinformalSomething large, powerful, or superlative.

   The basic 10K, known as a tenner or studio 10K, has a 20-inch fresnel. The big daddy of the group is the Big Eye tenner, which has a 24-inch lens.

   2008, Blain Brown, Motion Picture and Video Lighting, page 11