What's up? Possible replies: Nothing much I went to the movies and saw.... I went out with friends to..... I'm just playing computer games Just hanging out at a friend's place

The "Whazzup" commercial: http://www.youtube.com/watch?v=W16qzZ7J5YQ&feature=related

wassup means what is up? you can reply its good or not bad and then ask wassup with you? what are you up to or what you up to mean same and mean what are you doing to this you can reply by telling them what you are doing right now or what you have been doing since you last conversed with that person... in return ask them whats up with you...

Either say "nothing", or explain recent events and/or actions.