Duh is a word people say when they're dumb***es and think they're smart***es when saying it, but they're not. People imagine that the three letter word makes them so hilarious or whatever.
Back when people were stupid[er], and wars were going on, there was this man named Well Duh!, and he played an important role in the army, so everyone would go, "Is that man's name really well duh?" and the response would always be "Well, duh!"
- Duh! is an excuse for acting like it's so obvious and that the asker should definitely know the answer.
- Well Duh! died in 2001.