gym rat
US /ˈdʒɪm ræt/
UK /ˈdʒɪm ræt/

1.
pecandu gym, penggemar gym
a person who spends an unusually large amount of time at the gym
:
•
My brother is a real gym rat; he's there every day for hours.
Kakakku benar-benar pecandu gym; dia di sana setiap hari selama berjam-jam.
•
She became a gym rat after deciding to compete in a bodybuilding competition.
Dia menjadi pecandu gym setelah memutuskan untuk berkompetisi dalam kompetisi binaraga.