To wait for the other shoe to drop - to wait for the inevitable next step or the final conclusion. Example - "He just opened his mail and moaned. Now I am waiting for the other shoe to drop when he finds the subpoena"
To have skin in the game - to be at risk financially because you have invested in something that you want to happen. Example - "You take more ownership of something when you have some skin in the game"
A song and dance - a long or complicated statement or story, especially one that is not true. Example - "She gave me some song and dance about her kids always being sick and not being able to get to the meetings"
The best of a bad bunch - the person or thing of a group that is not as bad as the others, although none of the group is good. Example - "The picture isn't exactly what I would have chosen, but it was the best of a bad bunch"
Gall - rudeness and the quality of being unable to understand that your behaviour or what you say is not acceptable to other people. Example - "Considering that he never even bothers to visit my parents, I'm amazed that Tim has the gall to call them for money"