used to draw attention to a sexual innuendo in the previous statement
那个事情（用于引起对前述内容中关于性行为暗示的注意）
haven't seen much of the beach—we've been catching up on our sleep (nudge nudge).（我们）没怎么看海滩——我们一直在补充睡眠（那个事情）。
haven't seen much of the beach—we've been catching up on our sleep (nudge nudge).
（我们）没怎么看海滩——我们一直在补充睡眠（那个事情）。