装幌子

装幌子:

Literally means:

maintain an outward show; keep up a show

Actually means:

幌子 is a piece of cloth (or board) hanging out side a shop or hotel as a sign.

This phrase figuratively means borrowing something to show off oneself or to cover some fact. It connotes putting on a show. Derogatory.

幌子，商店、饭店门外悬挂的布招牌。

装幌子，比喻假借某种名义来显示自己了不起，或掩饰某种东西。存心装出某种样子给别人看。具有贬义色彩。