矢も盾もたまらず
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Meanings
1
unable to stay still; unable to contain one's feelings; unable to restrain oneself
Idiomatic expression describing a state of being so overwhelmed by emotion or impulse that one cannot hold back or remain calm. Often used when someone is bursting with excitement, anger, or impatience.
So overjoyed that I couldn't contain myself and rushed out.
He was so angry he couldn't restrain himself and banged the desk.