by hey my mom April 5, 2010

Next time someone asks you this, you should know that they don't actually give a crap how you are doing, so you can respond with a response that is just as crappy. Next time somebody says whats up, simply respond with "The sky... the sky is up kevin lol"
by Brooke Besson May 23, 2019

What's up?
A two letter preposition denoting a vector anti parallel to the local gravitational gradient?
You're such a fucking geek!
A two letter preposition denoting a vector anti parallel to the local gravitational gradient?
You're such a fucking geek!
by AnonymousBoschToo November 29, 2018

A commonly used word in high schools that means "Whats going on?" "Whats good?" or "Whats happening?"
Also sometimes abbreviated as 'Sup'
Also sometimes abbreviated as 'Sup'
Example 1
Person 1: Sup brah
Person 2: Nothin' much man. Just chillin'
Example 2:
Person 1: Yo man. help me out with dis!
Person 2: What's up?
Person 1: I need help with dis dumb english assignment!
Person 2: No worries bro. Here's my paper from last year!
Person 1: Sup brah
Person 2: Nothin' much man. Just chillin'
Example 2:
Person 1: Yo man. help me out with dis!
Person 2: What's up?
Person 1: I need help with dis dumb english assignment!
Person 2: No worries bro. Here's my paper from last year!
by YoloMan12345 September 27, 2018

A phrase to show your acceptance and/or and or approval of an idea or event. Or... if used in certain situations a way of expressing your discontent caused by a person's actions, ideas, or events.
a)1: what's good my homie?
2: not much man, just been chillin.
1: that's what's up.
b) so you're gonna side with them over me, huh? That's what's up.
2: not much man, just been chillin.
1: that's what's up.
b) so you're gonna side with them over me, huh? That's what's up.
by KingD303 June 16, 2016

a generlaised greeting, can be used in most situations but has only one correct response - i hate bottles
by idiot cat November 28, 2004
