jacked
adj. C1 Advanced US //ˈdʒækt// UK //dʒˈækt// jacked Slang
adj. having a very muscular and strong body. You use this to describe someone who looks like they spend a lot of time lifting weights at the gym.
adj. possessing a high degree of muscular development and physical strength. Typically used predicatively after a linking verb like 'get' or 'be'.
He got totally jacked over the summer.
After six months of heavy lifting and a strict diet, he looked completely jacked in his new gym photos.
The actor had to get jacked for his role as a superhero, undergoing a grueling physical transformation that involved twice-daily workouts and a massive increase in protein intake.
Usage
Often follows linking verbs like 'is', 'became', or 'got'.