"Why am I so Jacked?"
His friends response is " that gym membership is paying off"
Origin from 'hijacked': as the past-progressive meaning stolen in a violent fashion.
Commonly refers to robbery, theft, misuse, seizure, possesion.
Well muscled, iron-bound, pumped.
"Yesterday I jacked a pack of gum from the mall."
2. "That weightlifter sure is jacked. Too bad he's on steroids."