Who know what goes on behind closed doors

Don't be a doormat 

You make a better door than a window

I'm gona show him the door 

Keep the wolf from the door

She's at deaths door 

She slammed the door in his face

You know where the door is 

He can't seem to get a foot in the door

You know the doors always open 

It was a door to door search

Revolving door 

She has revolving door syndrome

Managed to sneak it through the back door 

Revolving credit

Do you think the whole world revolves around you

I whole heartedly agree 

Her whole world was turned upside down

You have dug a hole for yourself 

That is a whole other kettle of fish

Going to a fish fry tomorrow

Fishing for a compliment

Sincere compliments cost nothing and can accomplish much.

Could you be any less sincere 

Imitation is the sincerest form of flattery