Source : Webster's Revised Unabridged Dictionary (1913)

Mope \Mope\, v. i. [imp. & p. p. {Moped}; p. pr. & vb. n.
   {Moping}.] [Cf. D. moppen to pout, Prov. G. muffen to sulk.]
   To be dull and spiritless. ``Moping melancholy.'' --Milton.

         A sickly part of one true sense Could not so mope.
                                                  --Shak.

Mope \Mope\, v. t.
   To make spiritless and stupid. [Obs.]

Mope \Mope\, n.
   A dull, spiritless person. --Burton.

Source : WordNet®

mope
     n : someone who wastes time [syn: {dallier}, {dillydallier}, {dilly-dallier},
          {lounger}]

mope
     v 1: move around slowly and aimlessly [syn: {mope around}]
     2: be apathetic, gloomy, or dazed [syn: {moon around}, {moon
        about}]