yī bí kǒng chū qì

ㄧㄅㄧˊ ㄎㄨㄥˇ ㄔㄨㄑㄧˋ

Idiom

1to sing from the same hymn sheet

2lit. to breathe through the same nostril (idiom); fig. two people say exactly the same thing (usually derog.)