A sex act. It involves 2 ladies and 1 guy. Step 1: Lady #1 gives the guy a blowjob, while the guy shits in the second lady's mouth. Step 2: Lady #2 gets sick and takes a diarrhea dump on the guy's chest. The shit should flow down the guy's chest, and it should drench his genitals at the same time the guy ejaculates in Lady #1's throat. The shit/cum taste is reminiscent of the Irish alcoholic drink mudslide, only it's 100% natural man cream instead of Irish cream, and diarrhea instead of kahlua.
I'd love a Hungarian Mudslide tonight.