The Moldy Donut is a sex position in which you have to engage in missionary because that bitches asshole is stinky af.
Person 1: "Damn bru I finally got with that Latina last night"
Person 2: "Oh shit fr how did yall freak"
Person 1: "We had to do it in Moldy Donut cause she had some dingleberries hanging on for dear life ykwim"