to be cool as a cucumber
to be very calm and relaxed, especially in a stressful or difficult situation
What's the situation?
Imagine a chaotic situation – maybe your laptop crashes right before a deadline, or you're stuck in crazy traffic. 😱 But then there's *that* person who handles it all with a calm smile. That's being 'cool as a cucumber'! 😌🥒 It's about staying chill when everyone else is freaking out. It’s perfect for describing someone who stays composed under pressure.