Idiom: Nature Calls

"Oh no kids! Nature calls."

This idiom came into my mind during one of my classes when learning nature vocabulary and I shouted, "Nature calls!"

Of course this idiom has a totally different meaning than introducing vocabulary cards.

Can you guess?

'Nature calls' refers "to the need to go to the restroom".

A: Are you alright?
B: I drank too much water this morning.
A: Nature calls.
B: Exactly! I'll be back.

Happy Learning!

Do you have a favorite idiom? Send us your idioms at chromatic.english@gmail.com or post them into the comments.