Source : Webster's Revised Unabridged Dictionary (1913)

Tipper \Tip"per\, n.
   A kind of ale brewed with brackish water obtained from a
   particular well; -- so called from the first brewer of it,
   one Thomas Tipper. [Eng.]

Source : WordNet®

tipper
     n 1: a person who leaves a tip; "a generous tipper"
     2: truck whose contents can be emptied without handling; the
        front end of the platform can be pneumatically raised so
        that the load is discharged by gravity [syn: {dump truck},
         {dumper}, {tipper truck}, {tipper lorry}, {tip truck}]