mashed potato

noun2

1. •
   (rare) A single potato prepared in this manner.

   • But what God wants is mashed potatoes. Not many potatoes—one mashed potato. No potato can stand up and say, “Here I am! I’m a potato.” The word must be we. — 1975
2. •
   A dance or a dance move popular in Western culture the 1960s.

   • A Mashed Potato started long time ago With a guy named Sloppy Joe You'll find this dance is so cool to do Come on baby, wanna teach it to you. — 1962