insult・批判・攻撃に対して、すばやく鋭く、しばしば気の利いた言葉で言い返すこと。
"When the journalist mocked her outfit, the actress clapped back with a brilliant one-liner that went viral."
I had to clap back.
— Commonly attributed to Cardi B and other hip-hop artists in interviews and social media posts (general attribution; specific source varies)