Source : Webster's Revised Unabridged Dictionary (1913)

Flush \Flush\, v. t.
   1. To cause to be full; to flood; to overflow; to overwhelm
      with water; as, to flush the meadows; to flood for the
      purpose of cleaning; as, to flush a sewer.

   2. To cause the blood to rush into (the face); to put to the
      blush, or to cause to glow with excitement.

            Nor flush with shame the passing virgin's cheek.
                                                  --Gay.

            Sudden a thought came like a full-blown rose,
            Flushing his brow.                    --Keats.

   3. To make suddenly or temporarily red or rosy, as if
      suffused with blood.

            How faintly flushed. how phantom fair, Was Monte
            Rosa, hanging there!                  --Tennyson.

   4. To excite; to animate; to stir.

            Such things as can only feed his pride and flush his
            ambition.                             --South.

   5. To cause to start, as a hunter a bird. --Nares.

   {To flush a joints} (Masonry), to fill them in; to point the
      level; to make them flush.