请教两个英语俚语

问题描述:

请教两个英语俚语
在看美国原版的杂志,有两个句子因为两个词而看不懂,词霸里没法找出其意思,Thank u so much!
makeout song
trade places with some one for a day.

trade places with some one for a day.
和别人互换角色一天
makeout song 自己改编歌词的歌