'fast-flying' definitions:

Definition of 'fast-flying'

From: WordNet
adjective
Moving swiftly; "fast-flying planes"; "played the difficult passage with flying fingers" [syn: fast- flying, flying]

Definition of 'fast-flying'

From: GCIDE
  • fast-flying \fast-flying\ adj. moving or functioning quickly and energetically; as, a fast-flying messenger.
  • Syn: fast flying, hurrying, speedy. [WordNet 1.5]