During sex, One gets a hot bowl of mashed potatoes,and spoon feeds his partner with his penis.Also he can use his penis like a catapult to Fling the Mashed Potatoes into his partners mouth.

When a man puts his bare ass on another man or woman face and moves it around saying "mash potatoes and gravy" in a girls voice.

when a male/female would like to be shitted on literally n lick up the mess this term is used for sick basterds that like it kinky if this floats ya boat then try dirty sanchez

a fun word used to describe an outrageous or exciting moment:

A dude sticks his cock into a bowl of warm mash potatos and slaps it across a bitches face!

A naughty fetish of Philip Banks in the famous american sitcom "Fresh Prince of Bel Air".

From the movie "While You Were Sleeping". The family sits around the holiday dinner table making inane conversation. This line is used as a response when people are talking about useless information. A similar line from the same scene is, "John Wayne was tall." The line is even more powerful if someone else responds with this line.