Source : Webster's Revised Unabridged Dictionary (1913)

Hullabaloo \Hul`la*ba*loo"\, n. [Perh. a corruption of
   hurly-burly.]
   A confused noise; uproar; tumult. [Colloq.] --Thackeray.

Source : WordNet®

hullabaloo
     n : disturbance usually in protest [syn: {agitation}, {excitement},
          {turmoil}, {upheaval}]