open mic

US /ˈoʊ.pən ˌmaɪk/
UK /ˈoʊ.pən ˌmaɪk/
"open mic" picture
1.

开放麦, 开放麦克风之夜

an event at which anyone can perform, especially by telling jokes or singing

:
She signed up for the open mic night at the local cafe.
她报名参加了当地咖啡馆的开放麦之夜。
Many famous comedians started out at open mic events.
许多著名喜剧演员都是从开放麦活动开始的。