Idioms with meaning and example

1. Stir up a hornets’ nest
   Provoke trouble

Example: It’s not that the management is not aware of few false bills here and there, but they don’t call it because it would expose many and stir up a hornet’s nest.

1. Back against the wall
   Be in a difficult situation from where escape is difficult

Example: With banks baying for his blood over default in payments, he has his back against the wall.