sloppy thurston Share definition Flag A Latin-Aramaic in origin. Diarrhea on a girl's mouth and then she proceeds to suck the jizim out of the man's dong. The sloppy thurston was warm and delicious! sloppy thurston by Merkin Man August 8, 2004 0 0 Get merch Get the sloppy thurston mug. Buy Now — $32.95 See more merch