瘋狂; 狂野激動They sent him to a mental hospital after he was off his head. 他發瘋之後, 他們把他送到一家精神病院。He went off his head to do such a thing to you. 他太激動而對你做出那樣的事。
失去自制力, 驚慌失錯If you lose your head while you're driving a car, you might lose your life, too. 如果你開著車時驚慌失措, 你可能會送掉你的命。When she saw the fire broke out from her house, she lost her head completely in panic. 我看到屋子裡起火時, 在驚慌中嚇得完全不知所措。