bedpost

详细解释:n. 床柱
相关词组:
between you and me and the bedpost
in the twinkling of a bedpost

英语解释：

名词 bedpost:

any of 4 vertical supports at the corners of a bedstead

详细解释：

bed.post

n.（名词）
A vertical post at the corner of a bed.
底柱：床角的垂直柱子