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.
To Dodge a challenge in any form.
me: wanna play some yugioh?
me: why you jaying bro.
1. The action most perform by Jay.
2. Posting at a mad, insane rate.
"That _______ person has been Jaying lately."
"Yeah, he got a lot of posts yesterday."