'Sponger' definitions:

Definition of 'sponger'

From: WordNet
noun
A workman employed to collect sponges
noun
A follower who hangs around a host (without benefit to the host) in hope of gain or advantage [syn: leech, parasite, sponge, sponger]

Definition of 'Sponger'

From: GCIDE
  • Sponger \Spon"ger\ (-j[~e]r), n.
  • 1. One who sponges, or uses a sponge. [1913 Webster]
  • 2. One employed in gathering sponges. [1913 Webster]
  • 3. Fig.: A parasitical dependent; a hanger-on. [1913 Webster]