What does "overblow" mean?

Overblow: (Mus.) To force so much wind into a pipe that it produces an overtone, or a note higher than the natural note; thus, the upper octaves of a flute are produced by overblowing.

Additional senses

  1. 2.To blow away; to dissipate by wind, or as by wind. When this cloud of sorrow's overblown. Waller.

Sources