blah
/blɑː/informal <非正式> used to substitute for actual words in contexts where they are felt to be too tedious or lengthy to give in full 如此等等; 如何如何(用来代替不想说下去的话) ： he said nations great and small could come together to blah blah blah. 他说国家不论大小可以一起如何如何。
noun
1
- （亦作blah-blah/ˌblɑːˈblɑː/）[mass noun] used to refer to something which is boring or without meaningful content废话, 空话：
talking all kinds of blah to him.
和他说了一大堆废话。
2
the blahs
N. Amer. depression〈北美〉沮丧, 抑郁：a case of the blahs.
抑郁症的一个实例。
词源
early 20th cent. (originally US)： imitative.