look up any word, like donkey punch:
 
1.
A good thing, something lucky or beneficial; typically a British saying.
Maybe it's a good job that I didn't go to that party. I heard it was busted.
by cityondown78 February 26, 2010
 
2.
can be used as an insult. When someone says something they just found out, but you already knew. Stating the obivous.
1+1=2... Good Job! or Planes fly in the sky... Good job!
by Peiser March 28, 2005
 
3.
A "Get-Out-Of-Debt" job. A well-paying job which people take in order to pay off any debts, it is usually an unenjoyable job.
Matt: So how do you find your new job as a Banker?

Andy: Well, it's a good job.

Matt: Don't worry mate, you'll be able to quit in two years.
by simon94 August 04, 2010
 
4.
Something people say when they think you really suck.
Good job, Bush!

Way to go! 50%!

Good job, ass hole.
by Lee January 28, 2004
 
5.
It is a handsign meaning "asshole"
DeJuan: Good Job, Mike!
Mike: Thanks!
DeJuan: HaHaHaHaHa!!!
by Mr. Tijuana!!! August 02, 2011