Jack Number

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."

by kk.michelle November 27, 2012

swag-jack

one who jacks someone's swag

Khushbu Brahmbatt is a swag-jack.

by Thug Mr. March 3, 2011

Half-jack

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.

by LanguidLover July 19, 2011

Jack mike

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"

by Colin Powell, Tupac, Jay-Z, and Michael Jordan January 26, 2005

Jack Hammer

having a girl lay on her back on the floor with ass in the air while you are horizontal above her with hands on the coutch and feet on end table jack hammering the piss out of her.

Mike broke the table last night tying out the jack hammer on his new girl.

by batman63 May 28, 2006

jack in the crack

Submitting this because all the definitions are wrong. This term originated back in the 90's when Jack in the Box made national news from a bunch of stores getting people sick with E. Coli bacteria, which is basically from shit contamination. Hence, Jack in the Crack was born.

Hey, wanna go to Jack in the Crack?

by Jathra September 25, 2020

Defi-jack

The act of someone stealing your definition on urban dictionary. It starts by you making up your own clever word that you think would be perfect for Urban Dictionary only to see that someone already defined it 3-to-5 years earlier. Results of being defijacked include, but are not limited to: complaing about it on Facebook and or Myspace, telling all your friends that the first definitions were actually you, and suicide.

After using the term "CTS"(Chuckle To Self) for about a week, Sam decided to put it on UD. You can imagine his disapointment when he saw that some punk had Defi-jacked it 3-to-5 years before hand. He immediatly started complaing about it on Facebook and he continued his rant until he decided to kill himself.

by sce1301 July 10, 2010