Source : Webster's Revised Unabridged Dictionary (1913)

Drub \Drub\, v. t. [imp. & p. p. {Drubbed}; p. pr. & vb. n.
   {Drubbing}.] [Cf. Prov. E. drab to beat, Icel. & Sw. drabba
   to hit, beat, Dan. dr[ae]be to slay, and perh. OE. drepen to
   strike, kill, AS. drepan to strike, G. & D. freffen to hit,
   touch, Icel. drepa to strike, kill.]
   To beat with a stick; to thrash; to cudgel.

         Soundly Drubbed with a good honest cudgel.
                                                  --L'Estrange.

Source : WordNet®

drub
     v : beat thoroughly in a competition or fight; "We licked the
         other team on Sunday!" [syn: {bat}, {clobber}, {thrash},
         {lick}]
     [also: {drubbing}, {drubbed}]

drubbed
     See {drub}