blah/blɑ:; blɑ/ n[U](infml 口) talk that sounds impressive but actually says very little 冠冕堂皇的废话 That's just a lot of blah. 那纯粹都是胡扯. There he goes, blah blah blah, talking nonsense as usual. 他又来这一套了, 夸夸其谈, 像往常一样谈来谈去都是废话.
牛津英汉双解词典