This is a theatre term. If you "bring down the house," then you're getting so much applause and praise that it's likely to tear the roof right off of the theatre and make the building collapse.
To bring down the house means to cause an audience to leap to its feet, breaking into cheers and wild applause, by the power of one's performance.
To do work and focus
This is not an idiom. When you compare two things by saying one is the other, it is a metaphor. It means that however you keep your house reflects your personality, and vice versa.
It means you do not have to pay for dinner,either it is free or someone else will pay for you. This idiom usually means the 'house' or restaurant owner will pay for not 'anyone'.
On the house means it's free, or that the person who says that will pay for whatever you got.
Clarification needed. Are you sure about this expression? Could it possibly be "bring down the house"? How was it used? "Bring down the house" is something that would be said about a performance--especially a live performance in a theater or auditorium, where an audience would express great approval by loud applause (clapping), calling, whistling, etc. All that noise is said to bring down the house (meaning the theater); a performance that brings down the house is a huge success.
Distill down, or boil down, as an idiom, means to get to the essence of something, or to simplify it.
I've never heard that idiom before. Perhaps you mean DOWN AND OUT, which means that the person is at a low point in their life, that they're poor in every way and not likely to make a success at anything in the near future.
sit down come over to
This is an idiom meaning to narrow your focus down. It can also mean to narrow your aim and focus on one thing to hit. Picture the zero as a target and you get the idea of the idiom.
In trouble. The image is of your spouse kicking you out of the house and you have to spend the night with the dog.
"Bring some objectivity into the matter under discussion", don't just rely on subjective factors.