pump iron

verb

1. slang.
   intr to exercise with weights; do body-building exercises

Idioms and Phrases

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]

Related Words

• develop
• exert
• improve
• prepare
• train
• work out