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.
Flag′gy, a. [From 5th Flag.] Abounding with the plant called flag; as, a flaggy marsh.