what's up

A question that means "hi" or "What are you doing"
It can get annoying, but people don't seem to understand that.
The best way to answer is "I think it's the opposite of down" if you are annoyed by this question
"What's up?"
by The Billionth Random Monkey December 15, 2014
mugGet the what's upmug.

whats up then

often used when your wanting to fight someone
hey man i heard you wanted to bump,whats up then!!!
by mike the birdman January 28, 2006
mugGet the whats up thenmug.

What's Up?

1. A casual greeting or conversation starter, somewhat of a rhetorical question.
Usually followed by something like "Not much, you?," "Nothing much," or even answered with a "Hey man, how's it going?"
syn: How's it going? What is new?

2. syn. What can i do for you?, What would you like? What's on your mind?
1. Person #1: Hey There! What's up?
Person #2: Oh not much. What's up with you?

2. Person #1: Hey come here for a second, I have to ask you something.
Person #2: Ok, what's up?
by GangstaRL December 28, 2005
mugGet the What's Up?mug.

That's What's Up

"You got accepted to Harvard? That's what's up, dude."
by Bianca Burton June 17, 2008
mugGet the That's What's Upmug.

what up

what up dude
by tommy November 24, 2002
mugGet the what upmug.

what's up

see also: whazzup, whassup, whasabi!!, etc.
1. Hi
2. Wtf is wrong with you??

It's probably originated from the late 20th century, when people were astounded with the sky. The only thing that they would reply was "nothing"

Probably the first term to the decline of western civilization
1. Person 1: What's up?
Person 2: "Nothing" (most common response, maybe 99% of people say that)

2. Person 1: What's up?
Person: "The sky" (smart alleck answer: also: "the ceiling" or, "da roof")
mugGet the what's upmug.

whats up

what's happening with you?

also lookup:
word up
sup
wizzup
hey, whats up?
by actionsketch November 26, 2003
mugGet the whats upmug.

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