What is the meaning of Slush?

Half-melted snow or ice, generally located on the ground.

Liquid mud or mire.

Flavored shaved ice served as a drink (a slushie).

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

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

A mixture of white lead and lime, used as a paint to prevent oxidation.

Unsolicited manuscripts, as in slush pile.

To smear with slushy liquid or grease.

To slosh or splash; to move as, or through, a slushy or liquid substance.

To paint with a mixture of white lead and lime.

slush (half-melted snow or ice)

slush (flavored shaved ice served as a drink)

slush (icy drink)

slush (half-melted snow or ice)

slush (icy drink)

Source: wiktionary.org