shut sb/sth up phr v 1 shut up!spoken used to rudely tell someone to stop talking 【口】 闭嘴！ 住口！〔用于粗暴地制止某人说话〕: Just shut up! I'm trying to think. 闭嘴！我正在想事情呢。 2 [I,T shut sb up] to stop talking or make someone stop talking （使）停止说话: Will someone shut that kid up! 谁去叫那孩子别说话了！