Most predominantly used in the greater New York area, "mad" is an appropriate replacement for Northern California's "hella" and Boston's "wicked." In the common vernacular, it translates into "a lot" or "extremely." Can be used almost interchangeably with any of the above listed words.

For the most part, it means angry.
It's mad hot today.
She has mad problems.
by SVex January 18, 2005
"That kids mad cool"

"i got mad money"
by sarah April 2, 2003
(adj.) an adjective used to enhance a noun.
1- dude, you got skills.
2- dude, you got mad skills.
by will holland January 17, 2004
1. crazy, insane, demented, nuts, deranged, out of one's mind, bonkers, lost one's marbles.

2. angry (usually limited to the United States)

3. extremely, very
-"I get up before dawn, go to bed at midnight, work until I'm half-mad, and what do I get for it?!"

-"Ophelia's gone mad and she's run off! We have to catch her!"

-"Wow, your mom's really mad!"

-"This book is mad boring!"
by Lorelili April 6, 2008
Title of a satirical magazine and subsequent televeision show that pokes fun at the media and current events.
My mom better not throw away my old issues of MAD magazine.
by beto chapa October 7, 2005
"So how'd you like the concert?"
"Oh it was mad good."
"Yeah I know. Usher is mad hot!"
by amaran January 21, 2004
Australian term for awesumness,cool,crazy fun,kewl, fantastic, sick!
"how mad was that???"
by madperson November 17, 2005