Simmer Down

/SIM-er doun/ easy • Origin: Colloquial English; 19th century; revived online 2010s.

To calm down, relax, or lower intensity.

Simmer down—everything’s fine.

calm down,chill out

Used humorously or gently when someone is overreacting.

I never leave home without my emotional support water bottle.

They nerfed the sniper in the patch.

He’s been mewing for months for a sharper jaw.

That performance was a moment in fashion history.

She’s his waifu from that series.

He was catfished for months.