a heavy date idiom US and Australian English informal
恋人（或情人）间的约会，浪漫约会
a planned meeting between two people who are very interested in having a romantic or sexual relationship
I think Carol has a heavy date - she's been in the bathroom for over an hour. 我想卡罗尔有个浪漫约会——她在洗漱间待了一个多小时。