갑분싸

gapbunssa

What it means

The mood suddenly went cold — an awkward silence.

Where it comes from

First syllables of 갑자기 분위기 싸해짐 (the mood suddenly turns chilly).

When you'd use it

Right after someone says the wrong thing at a gathering.

Example

전 애인 얘기 꺼내서 갑분싸 됐잖아.You brought up your ex and the room went silent.

Careful

Casual — fine with friends, out of place in formal writing or with your boss.