Dunkin' Dumpty
Also, "Dunkin' Brown." Fall onto one's own poop after excrement. First recorded in 2022, this term originally had the literal meaning of “dipping into poop.” The current everyday usage, however, transfers any physical fall to various kinds of poop or vomit.
As in Ryno dunkin' dumpty himself right after I let him out in the backyard, or I don't know what to do, Caleb just dunkin' browned himself in the bathroom.