noun
indecision; sitting on the fence
Describes a state of being unable to decide between two options; often used in the set phrase 首鼠両端 (しゅそりょうたん).
彼はいつも首鼠両端で、なかなか決断できない。
He is always sitting on the fence and can never make a decision.
首鼠の態度を取っていると、どちらからも信用されなくなる。
If you keep being indecisive, you will lose trust from both sides.