The sound an idiot makes when mocking someone with laughter for something that said idiot does not understand. Also used following primitive behaviour pertaining to objects of the
civilized world (such as
slamming a door, carelessly slamming down one's glass onto a table so the liquid within
sloshes about or needlessly hitting something until it works).
"You think that someone who isn't intelligent, knows a lot -
dur-hur-hur - you're actually retarded!"
"Uh,
stupid thing - it doesn't work" bangs fan on desk and inadvertently hits its
power button "Duh-hur-hur! I fixed it!"