Source : Webster's Revised Unabridged Dictionary (1913)

Slum \Slum\, v. i.
   To visit or frequent slums, esp. out of curiosity, or for
   purposes of study, etc. [Colloq.]

Slum \Slum\, n. [CF. {Slump}, n.]
   1. A foul back street of a city, especially one filled with a
      poor, dirty, degraded, and often vicious population; any
      low neighborhood or dark retreat; -- usually in the
      plural; as, Westminster slums are haunts for theives.
      --Dickens.

   2. pl. (Mining) Same as {Slimes}.

Source : WordNet®

slum
     v : visit slums for entertainment or out of curiosity
     [also: {slumming}, {slummed}]

slum
     n : a district of a city marked by poverty and inferior living
         conditions [syn: {slum area}]
     [also: {slumming}, {slummed}]