Jetsam

from WordNet (r) 3.0 (2006)

jetsam
    n 1: the part of a ship's equipment or cargo that is thrown
         overboard to lighten the load in a storm
    2: the floating wreckage of a ship [syn: {flotsam}, {jetsam}]

from The Collaborative International Dictionary of English v.0.48

Jetsam \Jet"sam\, Jetson \Jet"son\, n. [F. jeter to throw: cf.
   OF. getaison a throwing. Cf. {Flotsam}, {Jettison}.]
   1. (Mar. Law) Goods which sink when cast into the sea, and
      remain under water; -- distinguished from {flotsam}, goods
      which float, and {ligan} (or {lagan}), goods which are
      sunk attached to a buoy.
      [1913 Webster]

   2. The act of throwing objects from a ship to lighten the
      load; jettison[1]. See {Jettison}, 1.
      [1913 Webster]

   3. Hence: Anything thrown overboard from a ship, whether
      floating or not.
      [PJC]

   4. Hence: [fig.] Objects scattered about in a disorderly
      manner; as, he couldn't find his sneakers among the jetsam
      in his room. [Colloq.]
      [PJC]

from Moby Thesaurus II by Grady Ward, 1.0

19 Moby Thesaurus words for "jetsam":
      castaway, castoff, derelict, discard, dogie, flotsam,
      flotsam and jetsam, foundling, junk, lagan, orphan, refuse, reject,
      rubbish, trash, waif, waifs and strays, wastrel, wreckage