To be jostled or pushed about (physically), as in a crowd or rough waves; to be tossed around.
朝の通勤電車で毎日揉まれている。
I'm jostled every day on the morning commuter train.
波の高い海で船が揉まれて怖かった。
The boat was tossed by high waves and it was scary.
混雑したコンサート会場でバッグが揉まれた。
My bag got jostled in the crowded concert venue.
To go through hardships or tough experiences and be tested or hardened by them; to be put through the wringer (socially or professionally).
若い選手は実戦で揉まれて成長していく。
Young athletes grow by being tested in real matches.
新入社員は先輩に厳しく指導され揉まれることが多い。
New employees are often rigorously trained and put through tough times by seniors.
彼は海外で揉まれた経験が今の仕事に生きている。
His experience being tested abroad benefits his current job.