Source : Webster's Revised Unabridged Dictionary (1913)

Flaggy \Flag"gy\, a.
   1. Weak; flexible; limber. ``Flaggy wings.'' --Spenser.

   2. Tasteless; insipid; as, a flaggy apple. [Obs.] --Bacon.

Flaggy \Flag"gy\, a. [From 5th {Flag}.]
   Abounding with the plant called flag; as, a flaggy marsh.