An AJ is a total clown. Someone who looks and acts like a clown but will never admit to being a clown.
by skyflyhi December 10, 2019

Aj is a hot girl who is so weird but u would love her anyway she is a loyal girl she will always call u out when u are being petty she can be the best thing that happened to u or the worse she is kind loving and will alway back u up
by Cutie #1💕 November 15, 2019

Australian Army slang
Member of Australian Army (Army Jerk)
Not derogatory when used by AJ's,can be derogatory when used by "civvies"
Member of Australian Army (Army Jerk)
Not derogatory when used by AJ's,can be derogatory when used by "civvies"
by Greendog December 24, 2006

Abbreviation for Average Joe. Most comonly a male who cares more about having sex then he does about his girlfriend. It can also be used to describe Females, and it can also be used as other parts of speech.
If you were AJ, you would have taken off my shirt by now.
It is not exactly AJ to kiss after 4 months.
Oh my god, you AJed her !!!
It is not exactly AJ to kiss after 4 months.
Oh my god, you AJed her !!!
by Flora Regina December 28, 2005

ugly, stupid, a brat, and AJ should stand for "A Jerk" sometimes, everyone thinks he's C.O.O.L (Constpated, Over weighted, Over Hated, Loser!) Nobody likes an AJ.
by Fun crazy cat April 8, 2019
