Colby Jack

Someone who is Asian and Caucasian.

Oscar is colby jack because his dad is Japanese and his mom is French.

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co-jack

to go on someones online profile or account by stealing there password or the owner of the profile let them on.

"Ronda's talking to me on facebook talking about how awesome Darin is."

"No, its probably just Darin Co-jacking on Ronda's profile."

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Jack someone off

To give someone a hand job

Would you ever jack someone off?

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back-to-back jacks

1. In baseball, when two consecutive batters each hit a home run.
2. The act is sitting back-to-back with someone, while giving each other reach-around manual stimulation.

1. "Dude, I went to the Orioles game last night and Roberts and Markakis hit back-to-back jacks!"
"What was the final score?"
"They lost 10-2."

2. Tom and Kevin had some drunken back-to-back jacks last night, claiming it's not gay if they can't see what they're doing

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dildo jack-off

A dildo jack-off is the preferred masturbation technique my cadet roomie uses to give a cumgasm -- he fucks me with a 10" dildo up my boy-hole, and jacks me off until I have a cumgasm, while he's fucking me with the dildo and I'm sucking his dick.

My cadet roomie gave me a dildo jack-off, and we both enjoy it -- I was sucking a cumgasm out of him, and enjoying being fucked as I blew my load!

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Jack Off Jill

They also had an EP called Covetous Creature with SMP from Marilyn Manson on guitars. Manson also gave them their name. Moulder's side project is T-C-R with Chris Vrenna, Nine Inch Nails, on guitar for afew tracks.

You know the babe from Jack off Jill
Yea
Shes Fit!

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louisiana jack hammer

getting your dick hard as a rock and then taking the toilet seat and slamming it onto your dick until the head pops off.

"ugh dude did you hear Andrew gave himself a louisiana jack hammer?!"

"yeah hes gonna be feeling that for a long time."

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