Duh!’ is an expression used to indicate that something is self-evident1 ortooobvious. This short, funny word, pronounced more or less ‘da’ (/dʌ/), is often used jokingly in a slightly2 mocking3 tone and adds a touch of humour to conversations. However, it isn't really a slang4 word, but rather5 a sarcastic alternative to ‘obviously’, ‘of course’, ‘no kidding’ or ‘that's so obvious!’ It is used to indicate that something is exceedingly apparent6, very clear and easy to understand, or to express annoyance7 at banality, stupidity or obviousness.
In fact, a lot of people use ‘duh’ for themselves more than they use it for others when they realise that they have said or done something dumb8. For example, you are standing in front of a door and try to push it open9. Then,…
