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8.
A potato, mashed
If them superstitious motherfuckers want to have that kind of party, I'm going to put my dick in the mashed potatoes.
by Matt January 25, 2004
 
9.
A Smashing pumpkins box set that was given to Billy Corgan's closest friends. It has 77 unreleased songs; some from the radio, some live, and some just plainly never heard!
Whoa, I am getting the Box set "Mashed Potatoes". I can't wait. I love the smashing pumpkins!!!!! Billy Corgan, YOU ARE MY HEREO!
by Billy Corgan April 25, 2006
 
10.
people who sit on the couch for more then 4 consecutive hours while they fail out of school, mold over dishes, and play farmville.
My roommate is such a mashed potato that her computer charger burnt out from 16 straight hours of gilmore girls.
by squirrellswin December 12, 2009
 
11.
Refers to the state of mind one enters upon smoking wayyyy to much weed.

A euphoric feeling that warms the soul, induced strickly by some fuzzy haze, or fluffy diesel.
"Shitttt man I smoked so much last night I was like a lump of mashed potatoes!"

"Mashed Potatoes anyone??"

"Yooo I cant feel my legs...im mashed potatoes right now son!"
by Jrockwhc76 May 13, 2009
 
12.
when one ejaculates in another's anus, and then they fist the load as far in as possible.
anal intercourse with johnny is so good, especially when he gives me mashed potatoes
by jeremyspearout January 10, 2007
 
13.
an exceptionally heavy ejaculate, generally after prolonged abstinence from sexual activities
The next girl I fuck is gonna get a face full of mashed potatoes
by Shiesty McNasty December 24, 2009
 
14.
an under-tanned or white person who does not do any type of regular physical exercise and therefore is out of shape. Mashed potatoes are soft, lumpy, squishy pale colored mush all over the body. Primarily fat in the stomach region, but can also be found in the legs or arms. Can appear in men or women and sometimes even in kids. NOT attractive or sexy. Beware of the mush!!!
Ew, that guy has mashed potatoes everywhere. I don't think I'd touch him with a ten foot pole.
by rachd19 November 13, 2010