Hacker 

Someone who specializes in finding exploits in computer systems. There main goal is to gain unauthorized access to networks and systems, usually in order to gain further information about the network. They are technical experts and usually highly advanced programmers.

There are 2 types of hackers: black hats and white hats. Black hats are the 'bad guys' while white hats are the 'good guys'. Black hats hack for there own needs, such as stealing money from someones credit card over the internet. White hats get paid to find exploits in programs and websites and then tell the company about them so they can fix them.

A hacker broke into a federal bank and stole $50,000.

Hacker by KuRupt Virus November 1, 2010

Hacker 

The cunt that ruins every online game invented.
They tend to waste 90% of their time in their mom's basement finding ways to hack mw2 or gta4 ruining the fun for everyone rather than getting a girlfriend or just playing the game. Also, sometimes hacks websites or even bank accounts instead of getting a job. See Loser

Hacker: Lolololol instead of me going outside ima h4x gta4 and 1 hit everyone. LOL!

Dumbass: WTF? H4X!

Personwithlife: Yawn* I'm done *Logs off

Hacker by frogbootycheekz December 25, 2010

hacker 

A pet or friend who coughs up hairballs.

Fluffy was a longhaired Persian who was also a hacker; the relationship was illfated.

hacker by harry flashman August 3, 2003

hacker 

A person specializing in hard programming languages, such as C++ or C#. Not to be confused with cracker, which is a person who intentionally breaks into other computers and destroys data.

I am a hacker, but not a cracker.

hacker by Matt Vessey July 9, 2004

hacker 

An anarchist of sorts. These people believe information should be totally undisclosed and free. Authorities do not like this idea. These peoples favorite insults include "lamer" and "noob}" They will program their own apps or hack other apps to learn how they work. They have strong curiousities imaginations and a VERY srong will to learn. Each one has their own handle or nickname (i.e. Slice or Shank) They have a fear of having their front doors broken so they only trust the info they gather with the people they would trust with their lives.

Will you teach me to be elite Mr. Hacker?

hacker by HaakJohb September 10, 2003

hacker 

someone who lives in there basement eating cold hard pizza.

my brother is a hacker he is so nerdish

hacker by r-Z October 21, 2004

hacker 

1. A ronin (masterless samurai) who swashbuckles through cyberspace battling security systems in order to liberate imprisoned data.
2. A criminal, dangerous to civil order and accountancy.
3. A lonely, housebound 15-year-old who wants to run free through fields of pure information.

System administrators constantly need to defend against the insurgence of hackers.

hacker by konholio February 14, 2005