1. The action of having sex with yourself by rubbing your penis to when it sperms...

2. The point of pleasuring yourself...

3. A first sexual move that a teenager (mainly) would do (see 1.)

4. Acting like a kid named Jack...
Woh, what happened to you? You're sweating like crazy dude!

I don't want to talk about it...

C'mon! Tell me!

Alright, you know Megan that huge-titied girl?

Yea...

Well, she was at the pool, and she was so HOT! So, I went into the restroom, and I started Jackin' myself...

Oh... Well that's understandable!
by HJxJJ April 25, 2011
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Jackin' (Jak-in)

v. jack·ed, jack·in', jacks

v.intr.
1. To issue forth man chowder in a forceful stream or jet; jackin'.
2. To eject baby batter in a jet towards a goo receptacle.

v.tr.
1. To eject spoatie forcibly in a gooey stream from a narrow opening in the wombjabber.
2. To make moist with a jacking of baby gravy.

n.
1. The act of jacking a load.
2. A jacked jet of liquid spewed forth from the clit stroker.
Wtf? Imma jackin' my load into her goo receptacle when all of a sudden, a message pops up for WOTD. You dorknuffas interrupted a good dick sucking for this shitty shit? What a bunch of fuckin' fuctards!
by Misty Dawn August 21, 2008
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Jackin' (Jak-in)

v. jack·ed, jack·in', jacks

v.intr.
1. To issue forth man chowder in a forceful stream or jet; jackin'.
2. To eject baby batter in a jet towards a goo receptacle.

v.tr.
1. To eject goo stew forcibly in a gooey stream from a narrow opening in the wombjabber.
2. To make moist with a jacking of baby gravy.

n.
1. The act of jacking a load.
2. A jacked jet of liquid spewed forth from the clit stroker.
Wtf? Imma jackin' my load into her goo receptacle when all of a sudden, a message pops up for WOTD. You dorknuffas interrupted a good dick sucking for this shitty shit? What a bunch of fuckin' fuctards!
by Misty Dawn August 21, 2008
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Jackin' (Jak-in)

v. jack·ed, jack·in', jacks

v.intr.
1. To issue forth man chowder in a forceful stream or jet; jackin'.

2. To eject baby batter in a jet towards a goo receptacle.

v.tr.
1. To eject goo stew forcibly in a gooey stream from a narrow opening in the wombjabber.

2. To make moist with a jacking of baby gravy.

n.
1. The act of jacking a load.

2. A jacked jet of liquid spewed forth from the clit stroker.
I was jackin' my load into Amy's goo receptacle when she sneezed coochie sauce all over everything! When I got home all tatored, my boner sniffer freaked out at the smell of strange pink taco on my package.
by Misty Dawn August 23, 2008
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The act of not talking to ones girlfriend, spouse, and soul-mate.
Nick was definitely jackin' this morning.
by Panda Hands November 1, 2010
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My mom can't make it to church today because they're showing a marathon of B.J. and the Bear reruns on tv. She's gonna be inside jackin' the box to Greg Evigan and his stupid monkey until she runs outta twat juice.

That crazy bitch needs to take herself some Xanaps. Have you ever heard of such fucktardation in your life? Oh excuse me...I just performed a manual release. Better hold yer breath, just in case this one is an anal apparition.
by Lârry Dângüs, esq. May 28, 2009
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