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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

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: Webster's Revised Unabridged Dictionary (1913)