the whole megillah

the whole megillah

something in its entirety, especially a complicated set of arrangements or a long-winded story. North American informal
Megillah is the Hebrew word for a ‘scroll’ and refers particularly to each of five books of the Jewish Scriptures (the Song of Solomon, Ruth, Lamentations, Ecclesiastes, and Esther) appointed to be read in the synagogue on certain important days.
See also: Megillah, whole