exhibitionism
n[U]
1 tendency to behave in a way intended to attract attention to oneself 表現癖
She was embarrassed by his exhibitionism at the party. 他在聚會上竭力表現自己使她感到很難堪.
2 (fml 文) offence of indecently exposing one's sexual organs in public 露陰癖(當眾暴露自己性器官的猥褻行為).