It's boiling

I love the phrase - It's boiling. I can't believe that I almost forgot it from living in the UK. I've recently begun to adopt it and the staff where I work sometimes look at me like I'm crazy but I think they're starting to understand what I mind.

People generally think of the term 'boiling' to refer to something in a pot that is boiling away, like water etc.

In London, the term 'its boiling' refers to the weather. Its just another way of saying 'its hot'. But I think the term 'its boiling' does a better job of expressing how you feel especially when it is super hot and you feel like you are actually boiling.