can of worms

listen to the pronunciation of can of worms
İngilizce - İngilizce
A complex, troublesome situation arising when a decision or action produces considerable subsequent problems

If I give her a promotion which she doesn't deserve, it will open up a whole can of worms with the other employees.

A troublesome situation; an issue whose resolution is difficult or contentious, but not necessarily complex

Calling her the greatest person who ever lived would definitely open a can of worms.

any situation that creates more problems than existed beforehand
a source of unpredictable trouble and complexity
A source of unforeseen and troublesome complexity
a can of worms
(deyim) A complicated matter likely to prove awkward or embarrassing
can of worms