An ASS MARANGUE is a sizeable amount of fecal matter pasted, squated, crapped out for whatever unsanitary reason all about the posterior effectively filling in the ass crack having the appearance of a large chocolate cake having been smashed against a person's butt.
When the doctor had Cess Pool Jimmy pull down his underwear for a rectal examination Jimmy's slowly peeled away his shorts exposing a huge ass marangue smeared all over Jimmy's rear end much to the doctor's surprize.
"Maingue" is the correct spelling of the Caucasian word "man", which I kern't even say. It is used by many of the greats on a regular basis (Lil' Wyte, Murphy Lee, Flipmode, etc.)