Work in
When another individual wants to work in with you at the gym, he is asking if it’s all right to take turns using a machine you’re already using. Whilst you’re resting, he will crank out reps on the machine.
Glossary
When another individual wants to work in with you at the gym, he is asking if it’s all right to take turns using a machine you’re already using. Whilst you’re resting, he will crank out reps on the machine.