A mixture between Dumbo, Monkey, Troll and a Gnome. It is the highest standard of retardation. They are unable to open doors, the have a fear of circles and they could not be able to reproduce at risk of spreading the DIMTIG disease.
Bert looks at babba and says, "Total Dimtig!"
babba grunts and falls over, " i didn't know that the door was a revolving door...meh"