on the fly

[NearThere]

I don't have furthur context, but could anone be able to tell what it might mean? And there's another one:

"on the fence"

Many thanks in advance.

NT

[Ouisch]

"On the fly" means in haste and without advance preparation. "I don't have time to cook a big breakfast in the morning, so I just grab something on the fly that I can eat in the car."

"On the fence" means undecided, having no definite opinion.
"Have you decided whether you're going to study law or medicine when you go to college?"
"Not yet, I'm still on the fence."

[aena jain]

to sit on the fence means to refrain from commiting oneself to either side in a discussion.

[NearThere]

Thanks so much!!