落枕lào∥zhěn 1.睡觉时脖子受寒,或因枕枕头的姿势不合适,以致脖子疼痛,转动不便。{have a stiff neck (caused by cold or awkward sleeping posture)} 2.(头)枕着枕头{touch the pillow; hit the sack}: 因白天太劳累,晚上~就着。{Because I had overworked during the day, I fell asleep the moment I hit the sack at night.}