打过门儿

打过门儿

Literally means:

make interlude or prelude

Actually means:

try to cover up facts or problems

过门儿 is the short music (prelude or interlude) connecting different parts of song or an opera.

The phrase means using some methods to cover up facts or problems during one's talk. It is often used colloquially.

过门儿，加在歌词（或戏曲的唱词等）前后、中间，起连接作用的小段乐曲。

打过门儿，指在说话时采用一些手段，用来掩盖事实或问题。多用在口语中。