a booty call

在讀一篇有關Facebook、Myspace網站文章, 有人就用 booty call 來形容
Myspace is for idiots! Its a place for a "booty call"

There are plenty of serious people on MySpace. Facebook is the hang out now.

到底是什麼意思呢?
a booty call is made when the prospect of a traditional romantic date is highly unlikely (e.g., late in the evening, after midnight or in the pre-dawn hours), thus making it obvious that the intent of the call is for the sole purpose of obtaining and engaging in sexual intercourse.
就是一通目的只是要做愛的電話。