noun

1. partly melted snow or ice
2. soft mud; mire
3. refuse fat or grease from cooking, esp. on board ship
4. any of several greasy compounds used as lubricants or rust preventives for machinery
5. ☆ overly sentimental talk or writing; drivel
6. ☆ a confection consisting of shaved or crushed ice with a syrup, usually fruit-flavored, poured over it
7. Informal slush pile

Etymology: prob. < Scand, as in Dan sluske, ult. < IE base *(s)leu- > sleet

transitive verb

1. to splash or cover with slush, esp. in lubricating or protecting
2. to patch with mortar

intransitive verb