Source : Webster's Revised Unabridged Dictionary (1913)

To-do \To-do"\, n. [To + do. Cf. {Ado}.]
   Bustle; stir; commotion; ado. [Colloq.]

Source : WordNet®

to-do
     n : a disorderly outburst or tumult; "they were amazed by the
         furious disturbance they had caused" [syn: {disturbance},
          {disruption}, {commotion}, {stir}, {flutter}, {hurly
         burly}, {hoo-ha}, {hoo-hah}, {kerfuffle}]