mashed potato convention 

Telling some one about a mashed potato convention Will instantly make them think "Who the fuck would take the time to set up a mashed potato convention". Then upon Explaining it to them will increasingly want to go. The need to go will become so strong that when they figure out there is no mashed potato convention they are very depressed.

you: Hey have you heard about the Mashed potato convention coming up?

Friend: No theres no such thing as a mashed potato convention.

You: yeh there is theres over 89 mash potato flavors plus a king of the potato contest were you get to try all the mashed potato.

Friend: Really that sounds so fucking dumb but i really want to go to this were is it?

You theres no mashed potato convention you retard.

mashed potato convention by Jason Rodd May 5, 2011

Mashed Potato Pussy Fucker 

One who enjoys the very cheesiest of tacos. Said vagina is generally so engulfed is a puss like substance that it is barely distinguishable from a bowl of mashed potatos.

Man, Sanjeep is such a mashed potato pussy fucker. He was in the shower last night and his cock fell off due to extreme rot.

Mashed Potato Pussy Fucker by Steve Penis October 7, 2007

fuck the mashed potatoes 

Slang for the act of ruining a meal for the other diners. Generally used in the context of a dinner party at a private residence, but can also apply to a meal enjoyed in a restaurant.
A more general definition applies when someone manages to spoil an event for the group by doing something very inappropriate.

Every time my girl and I double-date with James and Amy, We end up leaving early because James always manages to fuck the mashed potatoes by drinking too much and starting a screaming match with Amy about who spends to much money.

fuck the mashed potatoes by MikeinVA January 2, 2008

Turkish mashed potatos 

1.The act of boiling a potato, inserting it into a girls ass along with a little butter and salt and then fucking her as hard and fast as you can in the asshole.

1. Step one-Boil one large russet potato, Step 2 insert into asshole with butter and salt. 3. fuck asshole in a vigorous motion for 2 minutes 4. Enjoy you turkish mashed potatos!

Turkish mashed potatos by Jbook July 21, 2006

Mashed Potato Man 

noun. A menace of the forest that came to life through a bowl of mashed potatoes. He wears a yellow shirt, blue jeans, and underpants on his head to hide his true identity.

"The Mashed Potato Man has come back!"

Mashed Potato Man by Scnigey March 23, 2003

mashed potato sandwich 

An adjectival description of something as messed up as a soup sandwich.

Drill Sargeant Bohannon looked the recruit in the eye and said, "Boy, you are as fucked up as a mashed potato sandwich and will not survive first contact with the enemy unless you get with the program."

mashed potato sandwich by Percy Dovetonsils III August 19, 2003

mashed potato brains 

That feeling of mental retardation after coming down from a long night of tripping on acid

Man, I caught some major mashed potato brains the last time we tripped. I don't think I could deal with that again.

mashed potato brains by hobolizardg January 4, 2012