Stuck in the rut means living a life that is routine and predictable.
To vote with one's feet means let one's action do the talking.
Waiting in the wings means waiting for one's turn to do something.
To give/get a slap on the wrist is to give/get a slight punishment.
Put the fear of God into someone means say or do something to frighten him.
Strange bedfellows means two totally different people become very close.
Jumping on the bandwagon means supporting the one who is winning.
When you cut somebody down in size, you speak contemptuously of them.