Circulation

Katisha is referring here to the blood supply for her generous proportions. Hyder (161) adds a second, less obvious meaning: the large number of admirers who come to view her charms, as one would refer to a newspaper's circulation. MacPhail (194) recalls that Lloyd's Weekly Newspaper (published in London 1849-1902) boasted in a line beneath its mast-head: "Largest Circulation in the World."

Context: 
As for my circulation, it is the largest in the world
Opera: 
Act: 
Act II