What does the idiom “Sit on the fence” mean?
To not make a decision or take a side when presented with two options or possibilities. To stay neutral and not take sides in a dispute.
How to use idiom?
Well don’t you think I’m right, he’s been acting differently hasn’t he? I’m sitting on the fence with this one, you’re both my good friends.
The government has been sitting on the fence about legalizing marijuana for the past five years.