To become caught or stuck between two objects or forces; to be trapped or sandwiched (also used figuratively for being caught between people or opinions).
指輪が指に挟まって取れない。
The ring is stuck on my finger and won't come off.
ドアにバッグが挟まって、閉まらない。
My bag is caught in the door and it won't close.
二つの意見の間に挟まって、どちらを選ぶか決められない。
I'm caught between two opinions and can't decide which to choose.