open a Pandora's box



open a Pandora's box

to do something that causes a lot of new problems that you did not expect
Usage notes: In old Greek stories, Zeus (= the king of the gods) gave Pandora a box that he told her not to open, but she did open it and all the troubles in the world escaped from it.
(often + of ) Sadly, his reforms opened a Pandora's box of domestic problems.
See also: box, open

Common Names:

NameGenderPronouncedUsage
Ju-Wonjoo-wonKorean
Esquivel[eskivəl]
Kasparas-Lithuanian
LaneLAYNEnglish
ĽUba-Slovak
Corneliu-Romanian