AJ is a nickname for a male. Usually short for first and middle names. AJ's are ladies men and get a lot of girls. They are very flirty guys, but when they get into relationships they become loyal and tend to let their significant other control them or whip them around. VERY good in bed, and also a very good friend.
*AJ passes 20 to friend*
*Friend walks up to girl*

Friend: "Hey"
Girl: "Hello"

*Friend walks away*
*Girl watches*

*Friend gives AJ back his 20*
Friend: "You're right she does have pretty eyes"

*Girl Blushes*

or

"AJ is my bestfriend"
by anotheroneofthosepeople August 30, 2009
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an AJ is a majestic mythical creature that may come in many different forms. They are awe inspiring. You are one lucky dog if you see one within your lifetime... Even luckier if you know one.
"Holy snap I just saw AJ!!"

- "what was it like?"

"Like a majestic white horse galloping across a field of grass on a serene Spring morning."
by el_bato187 March 15, 2011
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A person (male or female) that has a very good sense of humor.
Dang, did you see AJ? She is hilarious!
by AliAllison September 10, 2016
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AJ is a bitch boi who has no friends and no one likes him. He is also that one friend who wants to eat cream cheese off your toes.
Person 1-“Hey do you know AJ?”
Person 2- “Yeah he is such a bitch boi
Person 1-“Yeah I know, the other day he said he’d eat cream cheese off my toes”
by SlickSlayz April 29, 2020
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THE most wonderful person you will ever meet and once you see him you can't help but fall in love. Very muscular and tanned. AJ's are very family oriented and care about everyone a lot. They are great conversationalists. Their sense of humor is divine and they are unbelievably attractive because of that.
Wait who on earth is THAT?!

Oh him? The attractive one beyond belief??

Yeah.

Oh, that's AJ.

Ooohhhhhh.
by i love real men August 29, 2011
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AJ Is a manwhore. he seeks for attention and usually loves basic white chicks. He'll replace you with a blink of an eye. He might have a good side in him but usually he'll replace your ass right away, he's a total heartbreaker. Watch out for the AJ's. Don't fall inlove with them.
Girl: OMG HE JUST KISSED ANOTHER SLUT INFRONT OF ME!

Girl 2: He's such an AJ.
by Lizzoxo November 05, 2017
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