Source : Webster's Revised Unabridged Dictionary (1913)

Slush \Slush\, n. [Cf. Sw. slaska to paddle in water, slask wet,
   filth.] [Written also {slosh}.]
   1. Soft mud.

   2. A mixture of snow and water; half-melted snow.

   3. A soft mixture of grease and other materials, used for
      lubrication.

   4. The refuse grease and fat collected in cooking, especially
      on shipboard.

   5. (Mach.) A mixture of white lead and lime, with which the
      bright parts of machines, such as the connecting rods of
      steamboats, are painted to be preserved from oxidation.

Slush \Slush\, v. t. [imp. & p. p. {Slushed}; p. pr. & vb. n.
   {Slushing}.]
   1. To smear with slush or grease; as, to slush a mast.

   2. To paint with a mixture of white lead and lime.

Source : WordNet®

slush
     n : partially melted snow
     v 1: make a splashing sound; "water was splashing on the floor"
          [syn: {splash}, {splosh}, {slosh}]
     2: spill or splash copiously or clumsily; "slosh paint all over
        the walls" [syn: {slosh}, {slosh around}, {slush around}]