Blank present are the present that has no thought behind it. This usually comes in the form of gift cards & money. The person who give these as presents often do not know what the reciever likes, and simply gives them the "choice" to get "whatever they want".

“空洞礼物”指没有任何想法或创意的礼物，通常是以购物卡或者现金的形式送出。送出这一类礼物的人多半是不清楚收礼物人的喜好，所以就干脆让他们“想买什么就买点什么”。

For example:

Best Buy, Target, and Kohls gift cards, and $100.... man, all I got this year were blank presents.

百思买的购物卡、塔吉特的购物卡、科尔士的购物卡，还有100美金，我今年得到的全是“空洞礼物”啊。