grab bag

Từ điển Oxford Advanced Learner 8th

ˈgrab bag f2 [grab bag grab bags] BrE NAmE noun (NAmE)
1. (BrE ˌlucky ˈdip)a game in which people choose a present from a container of presents without being able to see what it is going to be
2. (informal)a mixed collection of things
•He offered a grab bag of reasons for his decision.
See also: ↑lucky dip