pump (some) iron
To lift weights (to improve one's body shape or increase one's muscle mass). My brother-in-law is obsessed with pumping iron and getting huge biceps. I'm going to gym after work to pump some iron.
pump (some) iron
Sl. to lift weights for exercise. Andy went down to the gym to pump some iron. Mary's hobbies are pumping iron and running.
pump iron
Lift weights, as in She's started pumping iron three times a week. This idiom was born with the late-20th-century stress on physical fitness. [Second half of 1900s]
pump iron
If someone pumps iron, they lift heavy weights for exercise. Unlike Richard, I hadn't spent hours pumping iron and running on the treadmill.
pump iron
exercise with weights. informalpump ˈiron
(informal) do exercises in which you lift heavy weights in order to strengthen your muscles: I should take more exercise, but I’m not interested in pumping iron at the local gym three evenings a week.pump iron
verbpump (some) iron
tv. to lift weights. Andy went down to the gym to pump some iron.
pump iron
Sports To lift weights.