トレーニー
also: トレイニー
Meanings
1
A person undergoing training, often in a corporate or professional setting. A straightforward loanword from English.
New employees first undergo training as trainees.
2
gym rat; bodybuilding enthusiast; exercise addict
Slang term for someone who is obsessed with working out, especially bodybuilding. Often used in fitness communities.
He's a total gym rat; he goes to the gym six days a week.