\O`ver*blow"\, v. i.
1. To blow over, or be subdued. [R.] --Spenser.
2. (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.

\O`ver*blow"\, v. t.
To blow away; to dissipate by wind, or as by wind.
      When this cloud of sorrow's overblown.   --Waller.