moldy potato 

A meaningless insult. Meant to confuse people. Often used in the Panic! at the Disco song “I Write Sins not Tragedies”

“What a shame the poor groom’s bride is a MOLDY POTATO!”

moldy potato by M!A.T.D January 6, 2019

mouldy potato 

Pussy destroyer ;)

"Man, that guy was a real mouldy potato!"

mouldy potato by sAGO-LYFe March 4, 2016

Holy Moly Macaroni Ravioli Guacamole Chicken Nuggets Dipped In Mashed Potatoes 

When you're so surprised you ascend every other holy moly variation there is

Person 1: Dude I just got the rarest item in the game
Person 2: Holy Moly Macaroni Ravioli Guacamole Chicken Nuggets Dipped In Mashed Potatoes
Person 1: ew

Holy Moly Macaroni Ravioli Guacamole Chicken Nuggets Dipped In Mashed Potatoes by some urban dictionary user November 14, 2020