What is Messy Matt?
1.
When someone is fucking another person in the ass and jizz in their ass. Then the person farts the jizz out onto the someone's face.
I was quite suprised when Jen Messy Matted on me, leaving me with the disgusting smell of fart and the gross texture of jizz on my face
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2.
While people are having anal sex, someone ejaculates into someone's ass. Then, the person with jizz in their ass, farts onto someone's face, shooting the jizz out of their asshole onto someone's face, leaving them with the aroma of fart and the texture of jizz on their face.
When Brian, Eric, and Matt were having a three way during their rap group practice, Eric didnt want jizz in his ass. However, Brian jizzed in Eric's ass, so Eric in order to get revenge, pulled a Messy Matt on Brian and Matt, however Brian and Matt enjoyed it and didn't care.