grab bag

grab-bag的词性：
n.（名词）

1. A container filled with articles, such as party gifts, to be drawn unseen.
摸彩袋：内装物体的容器，如晚会的礼物，摸时不准看袋里的东西

2. Slang A miscellaneous collection:
【俚语】 混杂的东西：

The meeting evolved into a grab bag of petty complaints.
会议成了抱怨的场所