rub off phr v 1 [I,T rub sth ↔ off] to remove something from a surface by rubbing it 擦掉，抹掉: These pen marks won't rub off. 这些钢笔字迹擦不掉。 2 rub off on sb if a feeling, habit etc rubs off on someone, they start to have it because the person they are with has it 〔感情、习惯等〕影响某人: Her positive attitude seemed to rub off on everyone. 她乐观的态度好像感染了所有人。