happy slapping
中文翻译
n. 开心掌掴（指几人围殴一人，由同伙将袭击画面拍下）
[网络] 乐掴；掴掌乐；掌掴乐
常见例句
1
happy slaps, happy slapping.\r \r Slapping a random person (they can be on the bus, walking down the street, whatever) whilst recording the act with a video camera phone