Slim pickings may represent anything that is scare and rare, be it food on the table or opportunities for success.
If someone says something and they do so with "tongue in cheek", they mean to tell it like a joke.
In short, when the gloves are off, somebody could seriously get hurt.
If the end result is good, then all is good – the method you've been using to achieve the result must be good or be accepted as good.
Finding a way means discovering how to do something difficult or achieve one's goal in spite of difficulties.
“Sound and fury” as an idiom means mere noise, without meaning or significance.
If truth or something else good and treasurable, such as reason, morality, justice, etc. is said to go or fly out the window, it's gone.
In "cutting to the quick", the quick refers to the living, sensitive part.
If a meeting or conversation produces "a lot of dead air", it is not very productive. In other words, there's no agreement.