"Why am I so jacked" is used by males who work out or/ and li heavy weights to describe their muscles , or ideas they have a great build.
(as Mason looks at himself in the mirror while flexing)
"Why am I so Jacked?"
His friends response is " that gym membership is paying off"
by Crissygirl March 7, 2012
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Heard most frequently in US Navy boot camp. Also used by those having just recently completed the aforementioned boot camp.

I. State of being "jacked" or "jacked-up". A word used to describe something that has gone horribly, horribly wrong.

II. A substitute term to describe something as "fucked-up", malfunctioning, or of extremely poor quality.

See also:
FUBAR
Soup Sandwich
"Look at you sorry-ass recruits, runnin' around lookin' like a soup sandwich! JACKNESS!"

"Did you hear Petty Officer call us a soup sandwich? That's JACKNESS, man."

"He had to do push-ups because he was wearing his JACKNESS boots, instead of the ones he had shined-up."
by Kitty McSilver March 26, 2007
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Plugged in to the internet, especially involving mic/earphone capability over virtual reality and video games.
"The only reality is virtual. If you're not jacked in, you're not alive." -Fritz from Buffy, the Vampire Slayer
by Windy Chrome July 4, 2011
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New York slang for claiming something to be true in which is actually a lie.
Sean: Yo, I heard you and Markus' sister hooked up last weekend after we chilled.

Davis: Bro, chill. Her and I are just friends. I simply walked her home; that's all. Stop 'jacking' that.
by GodofSlang December 28, 2016
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An absolutely amazing person with a great sense of humour. He will make you laugh until you are crying. He will always make you happy and will make you feel like you are invincible. Jack is always trustworthy and He is always the first person you will talk to about anything that's bothering you and He always sorts it out and makes the world seem alright; it doesn't matter how bad you are feeling he always cheers you up. He never fails to put a smile on your face. He will frustrate you when he says he isn't good enough because you know that it just isn't true and that he is just the best. Jack is good looking and is the type that is always In Good shape. He always wears the best outfits and looks amazing. His music taste is just incredible and he always knows how to lighten the mood. He is a kind, compassionate and caring person and even though he never sees that in himself he deserves to know that it is 100% true. He is just amazing.
by Lilwillow February 25, 2019
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1. Verb: Past tense

Origin from 'hijacked': as the past-progressive meaning stolen in a violent fashion.
Commonly refers to robbery, theft, misuse, seizure, possesion.

2. Adjective

Well muscled, iron-bound, pumped.
1. "Yo, I got up to go to the bathroom and some jerk jacked my seat"
or
"Yesterday I jacked a pack of gum from the mall."

2. "That weightlifter sure is jacked. Too bad he's on steroids."
by Miranda November 22, 2003
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