表达 “have a falling out” 指某人因与他人意见不合而与其 “大吵一架，闹翻脸”，从而导致彼此之间的关系变得不再友好。

例句
When I was younger I had a massive falling out with my sister over a toy I hid. I still feel guilty about it even though we get on really well now!
我小时候，为了我藏的一个玩具，和我妹妹大吵了一架。到现在我仍然为这件事感到内疚，尽管我俩现在相处得很好！

John thought Clare had broken his mug on purpose. They had a huge falling out until he found out it was an accident!
约翰以为克莱尔故意打破他的杯子。他们因此大吵一架，直到他发现那只是个意外！

I had a falling out with my best friend last week because she borrowed my favourite top without telling me. We soon made up though!
上周我和我最好的朋友吵了一架，因为她没经过我的允许私自拿走了我最喜欢的上衣。不过我们很快就和好如初了。