butt naked

Refers to having a plain old ramen noodle soup without anything else (excluding water).

Guy 1: ay man you see teddy over there man? sittin' on his ass eating that butt naked
Guy 2: (a new prisoner) a what?
Guy 1: young blood, a butt naked is when a guy eats ramen noodle without no scoop a cheeze or they corn chips
Guy 2: oh, i see it now! hes eating it like a piggie