1. Jacked Stiff = Basically Killed, Dead, Finito. If someone Jacks you stiff, your dead (or beat up really bad.)

2. "Jack Stiff" can also be used as a name for someone who is living such a reckless lifestyle that they will soon be dead.

3. Jack you stiff = can be a threat.
eg. 1. ..Dumb-ass was running with the Bulls in Pamplona and got Jacked Stiff.

eg. 2. Mikey: you heard about that fool that messed with Tiny?
Tommy: Yeah, that motherfucker got Jacked Stiff!

eg. 3. This is your last chance, you mess up this time and I'll Jack you stiff!
by FilmWordz September 12, 2010
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When a person or persons experience a serious medical emergency (heart attack, stroke, seizure, drug overdose, etc.) or falls victim to a tragic accident (car crash, falling down the stairs, etc) or senseless violent crime (drive by shooting, hit and run, machete attack, etc.) that leaves the person or persons dead and obviously helpless to fend off their attacker or a random stranger or their first responder or a good samaritan from stealing their personal belongings, I.e. wallet, phone, money, credit card, jewelry, gold teeth, etc. then they have been stiff jacked.
Paul: George, did you hear that John has been shot in front of his apartment by this complete madman?!?
George: No! This is the first I'm hearing of it. So tragic! What happened?!?
Paul: He was just standing outside on the steps and this bloke walks up to him and shoots him in the chest point blank!
George: Oh my God!
Paul: Yeah! And that's not even the worse part.
George: Oh really?!?
Paul: Yeah because as he's lying their dead and bleeding everywhere little old Ms. Windsor walks over to his corpse and stiff jacked him by lifting his wallet and watch right in front of me!
George: Get out!
Paul: For real! I had no idea the kind, old grandma had it in her to stiff jack someone. Guess you never know do ya mate?
by Ambiguousgenitals January 27, 2021
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