grab-bag (n.)youdaoicibaDictYouDict[grab-bag 词源字典]
"miscellaneous mixture," 1867, originally the name of a carnival game (1854) consisting of a bag full of items to be obtained by thrusting the hand within, the privilege of doing so having previously been bought; from grab + bag (n.).[grab-bag etymology, grab-bag origin, 英语词源]