exhibitionism
noun [ U ] uk/ˌek.sɪˈbɪʃ.ən.ɪ.zəm/ us/ˌek.səˈbɪʃ.ən.ɪ.zəm/
disapproving表现狂，表现癖;出风头
behaviour that tries to attract attention
It's exhibitionism to flaunt wealth so blatantly. 如此招摇摆阔纯粹是出风头。
formal裸露癖;露阴狂
someone's enjoyment of showing their sexual organs in public