An expression used to chastize someone who is
wasting time, focusing on unimportant things, procratinating, or otherwise being an emo blond-haired sissy boy.
NOTE: In Square Enix straight-to-DVD GC movie sequel to
Final Fantasy VII, Advent Children,
dilly dally shilly shally is used as the translation to "Zuru zuru zuru zuru" in the japanese version... WTF