Muggleshock Posted in M Best definition Muggleshock The shock resulting in a sudden lack of costumes and geekery after a convention. I got so used to seeing ghostbusters and superheroes walking around that once I got home, the muggleshock was unbearable. How satisfied are you with the definition? Looking for Muggleshock meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 4 times.