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abbreviation for gum job; performed best by the elderly and/or trailer park trash who have had a problem with gingivitis.

Additional bonus points if the person performing the GJ happens to be attractive. This can be a life-altering event.
Guy #1: Rich is the luckiest guy in the world. His girlfriend was in a serious car accident, and now she has false teeth.

Guy #2: How is that lucky?

Guy #1: Goodbye BJ's....Hello GJ's! I'm tellin you, this will change his life forever.
by Edsantry February 12, 2007
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15
short for the band glassjaw.

glassjaw is one of the greatest bands ever
and has a really cool/g000d logo!

:)

person 1- yo i just bought a gj sweatshirt
person 2- werd, thats cool i love gj
person 3- umm whats gj stand for?
person 1&2- !!! it stands for glassjaw obviously!
by sw333td000d April 06, 2008
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16
A person from Grand Junction, CO.
Usually refering to someone who is a redneck/trailer trash/hillbilly.
Usually likes to drink, fight, cuss, etc.
That is so GJ!

Don't make me go GJ on your ass.
by CoGirl January 28, 2009
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17
"if you think gj means anything other than gigantic jungle, you should step on a lego."
by tacothetacoitscool March 23, 2020
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18
"Grass Joint", or Marijuana joint.
Somebody roll us a GJ for the ride.
by Weeezy July 23, 2007
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19
Gj is a simple definition that means G for Jesus
Aaron, Israel, Anthony, Me. Israel is a GJ
by Madara Uchiha February 14, 2008
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