Green’s Dictionary of Slang

queen mama n.

(US teen) the very best of a person, place or thing; the female counterpart of king daddy under king n.

[US]Austin Chronicle XVIII:14 4–10 Dec. 🌐 If Robert Bryce wants to find out what really happened to Madalyn O’Hair, the queen mama of atheists, I suspect there may be clues lurking on level three.