mashed potatoes

Short definition from Wiktionary

Noun

1. 1
   plural of mashed potato
2. 2
   A dish consisting of potatoes that have been boiled, mashed to a pulpy consistency, and mixed with such ingredients as butter or milk.
3. 3
   Partially melted snow with a pulpy texture, making for slow skiing.
4. 4
   Used other than figuratively or idiomatically: see mash, potato.