frottage
/ˈfrɒtɑːʒ/noun
mass noun
1
- Art the technique or process of taking a rubbing from an uneven surface to form the basis of a work of art【艺术】摩拓法, 擦印画法。
1.1
- count noun a work of art produced in this way擦印画作品。
2
- the practice of touching or rubbing against the clothed body of another person in a crowd as a means of obtaining sexual gratification摩擦淫（指在人群中接触或摩擦别人穿着衣服的身体部位以取得性满足的变态行为）。
派生词
frotteur
noun （复同单）（限义项2）frotteurism
noun （限义项2）词源
1930s: French, 'rubbing, friction', from frotter 'to rub', of unknown origin.