The placement of one's face, specifically the mouth, between the ass-cheeks of another person, followed by a rapid shaking of the face in a side-to-side motion accompanied by yelling. The resulting sound that is created sounds similar to an outboard boat motor.
-I'm into some pretty weird stuff, but mud boating isn't one of them.

-Cane: I'm going to get intimate with your sister...
Josh: After you mud boat me mother fucker!!

-She so fine, I'd mud boat the shit outta that bitch!
by Get in the car Cane. March 31, 2010
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The art of sticking your head between a anal crevious, shaking it left and right whilst blowing a rasberry.
Shit the bed, I was mud boating Erin last night and I think I swallowed a haemoid.
by Brownie CH August 28, 2008
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The act of bobbing in the toilet for feces while someone is performing anal sex from behind.
This is one hell of a weird Halloween party, Mike! Did you see they're doing the Mississippi Mud Boat down by the bonfire?
by Bird Dog and T January 19, 2008
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5 or more men performing anal sex in-line with each other. Extra points if it's incestuous.
Hey Tom, the guys wanna know if you're in for a Mississippi Mud Boat Ride this weekend?
by Big Ern Mccracken February 17, 2020
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I mud boated her so hard with my nose I sent shock waves up her mud river.
by Lilguacamole24 April 14, 2022
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