When one eats an excessive amount of lettuce, chewed properly, which is then spewed out in diarrheal form... Resulting in what appears to be sea monkies floating in the toilet bowl.
Similar to having a case of the munchies except you mean you have a craving for a dead woman's vaginal secretions, and other material that "cums" out when you "munge" a girl. *Note: that this is an acquired taste.