grab bag

1. A container filled with articles, such as party gifts, to be drawn unseen.
2. Slang. A miscellaneous collection: The meeting evolved into a grab bag of petty complaints.

noun

A collection of various things: assortment, conglomeration, gallimaufry, hodgepodge, jumble, medley, mélange, miscellany, mishmash, mixed bag, mixture, olio, patchwork, potpourri, salmagundi, variety. See collect/distribute.

A miscellaneous collection, as in The meeting amounted to a grab bag of petty complaints. This term alludes to a container offered at a party or fair, where one dips in for a party favor or prize without knowing what one will get. [Mid-1800s]