はさ挟hasaまるmaru
1.
To become trapped or unable to move because of being squeezed or compressed from both sides.
2.
To find oneself placed in the midst of opposing parties or conflicting situations.
3.
To occupy a narrow space between two objects, often resulting in being stuck or hindered.
Example:
ハッキリ言ってくれよ。そんな奥歯に物のはさまったような言い方しないで。