A dubbed movie is when you watch a movie ,for example, from the United States but the language that you hear will be in Japanese. The original language will be in English, but when it is shown in your country, you will hear Japanese spoken.
so the definition of dub (dubbed is past tense) - to voice a film in another language.
I can't stand dubbed movies - I do not like dubbed movies.
I do not like dubbed movies, either. I prefer subtitles and like to listen to the original language. :)