Usually a sound that happens when something bad happens, usually it's as music but some people actually say "DUNDUNDUN" when something bad happens just to be funny.
n. Velcro laced shoes, mostly worn by preschoolers and retards; some extremelylaughable kicks ;
adj. To be so blatantly stupid that one cannot tie their own shoes.
"What's good, been a long time! Last time I seen ya was back like in grade school, you was rockin them corny ass durundunduns!"
"Wow, I was so wasted I can't even remember calling you, I said what?!? Damn, I better be easy, before I end up one them durundunduns try pushin circles into squares!"