A person who goes to a party and sits on his / her ass while every one else dances...
"Vyy ees beeing a Party Potato sooo out dees season? Get up and donce poopie!"
by jimmy c January 19, 2005
Party potatoes are mashed potatoes mixed with cream cheese, sour cream and milk, then baked to a creamy goodness. Also known as party "potes".
by Bean_0916 March 28, 2009