As defined on Triptank, an East Carolina mudslide is when you leave the toilet lid down completely and and sit with your bare butt cheeks right flat down on top, and when you defecate, the force of the expulsion just slip-slides you all around, and you end up gliding right off the front and landing onto the floor in a big old pile of your own mess.
Senator Hume: Now, we've all heard of an upper decker, but what I like to do is an east carolina mudslide and it is disgusting. Your show is disgusting.

Steve: I don't know what's going on here.

Roy: Me neither man, but I'd vote for him in a heartbeat.
by senator hume of east carolina November 25, 2015
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Occurs when one leaves the toilet lid down, and proceeds to defecate on the lid. The force of explosion slides your ass cheeks around and you end up gliding off the toilet lid onto the ground. Landing in a pile of your own shit
Dale:" Did you give them the upper decker? "
Clark:"Naw, I hit 'em with the East Carolina Mudslide."
by Doncoolio December 10, 2015
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