아니 땐 굴뚝에 연기 날까
ani ttaen gulttuge yeongi nalkka · Would smoke rise from a chimney with no fire lit?
Rumors usually have some cause behind them.
When to useWhen a rumor won't go away and you suspect there's something to it.
Think ofThere's no smoke without fire.
Examples
둘이 사귄다는 소문이 계속 나네. 아니 땐 굴뚝에 연기 날까.
The dating rumor keeps coming up. No fire, no smoke, right?