Source : Webster's Revised Unabridged Dictionary (1913)

Drum \Drum\, v. i. [imp. & p. p. {Drummed}; p. pr. & vb. n.
   {Drumming}.]
   1. To beat a drum with sticks; to beat or play a tune on a
      drum.

   2. To beat with the fingers, as with drumsticks; to beat with
      a rapid succession of strokes; to make a noise like that
      of a beaten drum; as, the ruffed grouse drums with his
      wings.

            Drumming with his fingers on the arm of his chair.
                                                  --W. Irving.

   3. To throb, as the heart. [R.] --Dryden.

   4. To go about, as a drummer does, to gather recruits, to
      draw or secure partisans, customers, etc,; -- with for.

Source : WordNet®

drum
     n 1: a musical percussion instrument; usually consists of a
          hollow cylinder with a membrane stretch across each end
          [syn: {membranophone}, {tympan}]
     2: the sound of a drum; "he could hear the drums before he
        heard the fifes"
     3: a bulging cylindrical shape; hollow with flat ends [syn: {barrel}]
     4: a cylindrical metal container used for shipping or storage
        of liquids [syn: {metal drum}]
     5: a hollow cast-iron cylinder attached to the wheel that forms
        part of the brakes [syn: {brake drum}]
     6: small to medium-sized bottom-dwelling food and game fishes
        of shallow coastal and fresh waters that make a drumming
        noise [syn: {drumfish}]
     [also: {drumming}, {drummed}]

drum
     v 1: make a rhythmic sound; "Rain drummed against the
          windshield"; "The drums beat all night" [syn: {beat}, {thrum}]
     2: play a percussion instrument
     3: study intensively, as before an exam; "I had to bone up on
        my Latin verbs before the final exam" [syn: {cram}, {grind
        away}, {bone up}, {swot}, {get up}, {mug up}, {swot up}, {bone}]
     [also: {drumming}, {drummed}]

drummed
     See {drum}