1. It's gonna end in a freaking singalong.

你们非得唱上一曲才肯罢休

2. I have to head over to the church for an allnight singalong.

我得去教堂参加一个通宵唱歌活动

3. Probably turned into some potluck, postermaking, singalong.

说不定之后就要搞什么百乐餐 做海报 唱圣歌

4. another singalong or another invitation up to bed.

想利用这事哄我上楼去

5. Oh, it's my cello in case we wanna have a singalong.

这是我的大提琴 以防我们要唱歌

6. I went to the lake website to check the weather, and, um, it turns out that there is a nice hotel with a piano in the lobby for singalongs.

我去官網看了下天氣 然后我注意到那里有一家酒店很不錯 大廳里還放了鋼琴可以跟著唱

以上参考资料就是本英汉词典详细汇总的单词singalong的翻译英语含义，如有错漏请向我们提供反馈意见。