English Idiom: Stir the pot
Some people like to stir the pot. They love to make people angry or make a situation worse. Sometimes they do this to get more attention, to create some excitement or to have fun.
Perhaps a couple has had a fight, but things have started to quiet down, and maybe they will get together again.
That’s OK, but a person who likes to get under others’ skin may ask why they had a fight or ask who lost the battle to get the couple fighting again.
Yes, I know that that is not a very nice thing to do, but usually stirring the pot is not a nice thing to do and people who like to do it are not very helpful either.