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3.
another way of saying "what?" or "whats up?" or even "hello"
Also used to say what in the context of, "I'm sorry, can you repeat that?"
Me: Hey, what's going on?
Troy: Haah?
Me: Oh, nothing, I just said what's up.
Troy: Oh, nothing. What's up?
by the_bob October 27, 2005
 
1.
What you get when you type "haha" too fast.
omg john that is so funny, haah
by Hershey400 May 16, 2009
 
2.
haah means that you're laughing so loud on someones skype joke
"omg that picture is so haah"
by nemanja_ybcc February 13, 2010
 
4.
Hot as all hell, slang used in suberbia by white kids wanting to be ghetto
damn that girl is haah
by jared June 17, 2006