Said in reference to sneaking up behind someone and humping them in the butt. Giving them ur mashed potatoes means to ejaculate in said person's anus. This is enjoyed by gay men and extremely slutty/kinky girls.
"Come here boy u gonna get sum a deeze mashed potatoes"
by dont worry about it February 12, 2005
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n. A starchy fictional food, looks like glue, or diarrhea. In fiction, it is manifestly made from mashing potatoes (peeled or unpeeled), or sometimes baked, potatoes with a ricer, fork or potato masher.

In real life, it is not possible to mash a potato.

See also Wonka Bar.
"I'm going to make some mashed potatoes."
"That's ridiculous, they don't exist!"
by Some wise guy aha! August 16, 2009
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A pimple on your face that has popped without your knowledgs.
"Damn, Terri had a nasty mashed potato on her cheek this morning..."
by Russell H May 9, 2007
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Meaning a man and a woman that are white and are exchanging their liquids until it looks like mashed potatoes.
Sally made mash potatoes last night with Jim.
by sillywilly1313 June 19, 2014
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to say good bye or see you at a later period in the day (when you leave,depart from a place, dwelling or any other area which you frequent with your friends, brothers, sisters, gang, crew, or homies) n.b. can be shortened to mash or used with any other kind of potato e.g. jacket/boiled/baked/roast/sweet potatoes
safe kids, i've got to go, mash potata - see ya lata
by maximus tentius April 20, 2004
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