The Collaborative International Dictionary of English v.0.48:

Slosh \Slosh\, Sloshy \Slosh"y\
   See Slush, Slushy.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "sloshy":
   barfy, crappy, dirty, disgusting, fecal, feculent, fetid, filthy,
   flyblown, foul, gloppy, gunky, icky, maggoty, malodorous, mephitic,
   miry, mucky, muddy, nasty, nauseating, odious, oozy, ordurous,
   plashy, puky, putrid, rank, repulsive, rotten, scabby, scummy,
   scurfy, shitty, slabby, slimy, slobby, sloppy, sloughy, sludgy,
   slushy, soft, splashy, sposhy, squashy, squelchy, squishy, turbid,
   vile, vomity, wormy, yecchy