Tail wagging the dog.
This idiom or expression has to do with:
A minor situation (or item, or person, etc.,) affecting or controlling a much larger situation, as in tail wagging the dog instead of the other way around.
Dog-eat-dog
This idiom or expression means:
Dangerous.
Characterized by mean behavior; people fighting like dogs to get what they want.
A world where people only look after themselves and won’t hesitate to hurt you.
When someone says: It’s a dog eat dog world out there, they mean something like: Be careful, it’s very dangerous!
Hard dog to keep on the porch.
This idiom or expression means:
Difficult to control.
Has his or her own agenda.
A. I hear you’re having difficulty with your new assistant.
B. You heard right! He’s a hard dog to keep on the porch.
Until the last dog dies.
This idiom or expression means:
Forever.
For a very long time.
A. How long are you gonna stay here?
B. I’m gonna be here until the last dog dies.
