zonk out
昏昏欲睡或昏过去
口语·形容极度疲惫后突然入睡
英文释义
to fall asleep or become unconscious, often abruptly or unexpectedly
例句
After the long hike, I came home and zonked out on the couch for three hours.
典故来源
源自20世纪50年代美国俚语，拟声词'zonk'模仿突然昏倒或失去意识的声音，后引申为因疲惫而快速入睡。