The act of defecating onto one's chest, then dipping one's ballsack into the feces, leaving a crater. Then peeing into said crater. Creating a mashed potatoes-with-some-gravy inspired look.
My girlfriend is so weird, she let me do Mashed Potatoes to her.
My girl was pissing me off so I gave her some Mashed Potatoes to wake up to.
My girl was pissing me off so I gave her some Mashed Potatoes to wake up to.
by Lienad15 April 19, 2014
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