The process of exciting male genitalia until it is partially erect in order to help the refractory period after getting the first "easy" orgasm out of the way.
Joe half-jacked so that later when he has sex with Jennifer Whoreton he would be able to reduce the time between sexual excursions.
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1. To take over a microphone during a rap battle. 2.To be on top of your game.
1. "He was a weak M.C.so I had to make a jack mike move."
2. Person 1 " How are you sir ?"
Person 2 " Man, I'm jack mike"
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To have a fuck buddy, or any other female who one has sex or sexual relations with, stolen by someone else.
Your girlfriend is sleeping with Tom?! Dude, you got pussy jacked!
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This dude has the biggest dick, and he can fuck like a horse. If you ever try to fuck a Jack Dugan, you will enjoy yourself for the whole night, because he never stops. He might even last longer than you! Jack Dugan is willing to try any new position to make you satisfied. Jack Dugan is an absolute stud, who anybody should want.
I just had the best sex of my life with Jack Dugan
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When you steal someone's picture (from facebook, blackberry messenger, etc) without them knowing
Person 1: Hey look at this pic of my friend's birthday cake
Person 2: How did you manage to get that picture? You weren't even there...
Person 1: Oh, I soooo creeper jacked it
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Basically just you're phone number.. but usually said in a rude way or when you're mad. Meaning like the number ain't jack, who the fuck cares..
"Whatever ma, I didn't give no one your jack number.. I'm off this."
or
"Fuck you nigga. You gonna keep sayin that shit then just delete my jack number."
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When someone goes on holiday without telling you and wants you to feed their pet.
My mother-in-law : I'm away for a couple of days in the camper van, can you feed Jack.
Me : Yeah sure, I'll just drop everything to feed your damn cat, like a don't have a life of my own.
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