exhibitionism
n[U]
1 tendency to behave in a way intended to attract attention to oneself 表现癖
She was embarrassed by his exhibitionism at the party. 他在聚会上竭力表现自己使她感到很难堪.
2 (fml 文) offence of indecently exposing one´s sexual organs in public 露阴癖(当众暴露自己性器官的猥亵行为).