1. To jerk off, wack off and or wack your bag.

2. To cum, jizz or nut on or about somthing.
1. The other day i was jaying at the computer and my roommate walked in.

2. I was fuckin her from behind and decided to jay all over her back.

3. I was fuckin that chick and her pussy smelt so bad that i lost my hard and couldnt jay.
by Patty Flems August 11, 2008
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A friendly and slightly reserved person who takes a little while to warm up to you, but once they are they will be a fantastic friend. Understanding, trustworthy, compassionate, dependable and fun are just a few of their qualities. Don't underestimate their intellectual capabilities or their never ending loyalty. Such a calm and steady person is hard to come by so hang on tight.
Be happy, be proud, be Jay Jay.
by Jess0955 November 28, 2017
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Jai jai is a really tall usually Asian guy who is fun to hang around, he loves to play basketball and is a God at it, he is also tough, kinda like jermy lin
Whoa look look at jai jai over the he's so good at basketball
by Rip lilpeep June 03, 2018
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A very small Penis, "less than an inch."
A very flat Penis.
An inside out Penis.

Put all these together to get a Jay-Jay
When i was born, i never grew out of my Jay-Jay.

Now all the girls laugh at my Jay-Jay.
by Cypress Kids (B-D-B-N) June 05, 2007
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The most amazing person you'll ever meet. He's beautiful in every way possible. He can make you smile, even when you're both upset. He has the most caring heart despite being through so much pain. He's sensitive though so if you're lucky enough to ever be with him, treat him as well as possible.
Person 1: "wow, Jay is great"
Jay's girlfriend : "I know right? He's only mine though"
by Megtallica February 11, 2018
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A remarkably romantic, good-looking, and charming individual, who is highly desired by women all over
I need to get myself a 'Jai'
by inshadesofblue May 29, 2015
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