adjective

• elite; COOL. "Hacker code," in which 1 is "L", 3 is "E", and 7 is "T".

  Man, that's one 1337 computer!

  More words meaning: computer slang
  More words meaning: impressive

  by Matthew B., Charleston, WV, USA, Feb 13 2002  (Edit definition)

adjective

• good.

  He's got mad skills.

  More words meaning: impressive

  by Ben Brinckerhoff, IL, USA, Nov 24 1997  (Edit definition)

• many.

  There were mad chicks at the party!

  More words meaning: many, much, lots

  by WalterGR, Sacramento, CA, USA, Nov 08 1998  (Edit definition)

• crazy; insane. Not slang.

  He's gone mad!

  Are you mad?

  More words meaning: crazy, insane, weird, strange

  by Mitch F., Cary, NC, USA, Dec 11 2001  (Edit definition)

• much; A LOT.

  We've got mad homework.

  More words meaning: many, much, lots

  by M. K., New York, NY, USA, Mar 04 2003  (Edit definition)

adverb

• very; really; extremely.

  That party was mad fun!

  More words meaning: very, extremely, completely, in a grand way

  by WalterGR, Sacramento, CA, USA, Nov 08 1998  (Edit definition)

adjective

• impressive or flashy. Typically used to refer to new technology.

  This software update has a lot of new whiz-bang features!

  More words meaning: computer slang
  More words meaning: impressive

  by Anonymous, Jan 02 2003  (Edit definition)