Time went by, and the expression "what is up" became too long to say, type and text for the average lazy person. Therefore wassssssssup was invented.
Following this point, budweiser took this idea and made it their international slogan used on adverts, said by various strange frog people.
WASSSSSSSSSUP was then the word of the world and everyone, wherever they were, whether in an igloo in iceland, or in a whole in tikrit, (iraq), or in a cave in afghanistan, or even in some shitty trailer park in America, or Buckingham palace everyone could say "wassssssssup" without necesarilly understanding it.
alex: " not much, you?"
'Wussup' can also be stated non-verbally in the form of a short, verticle head jerk upward.
Jane: "Whatever, don't bring that lame ass game over here."