to roll around in one's mind
01
to be thought about by someone without much coherence
![to [roll] around in {one's} (mind|head) definition and meaning](https://cdn.langeek.co/photo/45317/original/?type=jpeg "to [roll] around in {one's} (mind|head) definition and meaning")
Collocation
例子
Various ideas and possibilities roll around in my mind when I'm brainstorming.
The question of what to do next rolled around in her head, causing confusion.
