Source : Webster's Revised Unabridged Dictionary (1913)

Rampage \Ramp"age\, n. [See {Ramp}, v.]
   Violent or riotous behavior; a state of excitement, passion,
   or debauchery; as, to be on the rampage. [Prov. or Low.]
   --Dickens.

Rampage \Ramp"age\, v. i.
   To leap or prance about, as an animal; to be violent; to
   rage. [Prov. or Low]

Source : WordNet®

rampage
     v : act violently, recklessly, or destructively

rampage
     n : violently angry and destructive behavior [syn: {violent
         disorder}]