Occurs when a male and female, preferably related and redneck, have sexual intercourse that causes pregnancy. After 9 months, instead of producing an inbred cyclops baby, the male and female give birth to a little niglet.
Guy 1: hey congrats on the baby brother! Your gonna be a great dad.
Guy 2: no way brother, that thing is a Carolina Nightmare!
Guy 2: no way brother, that thing is a Carolina Nightmare!
by anonymous3784954 September 3, 2012