A miscellaneous mixture; random collection: the grab-bag of memories in my muddled head
[1855+; dated sense refers to a carnival game in which one may reach inside a bag of small prizes after paying a fee]
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source
Idioms and Phrases with grab-bag
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.