Going back to the previous sentence, we see that the word tripe means either part of the stomach of an animal (mainly sheep and oxen) one eats or "rubbish" as used in slang, foreword that the men the author is describing, consistently indulging in said tripes (as shown in "licked his fingers" and "mischief") the men would have stunk physically from organs and trash and metaphorically, due to overindulgence and indecency.

爲數還不少，也有助語言的精煉，尤其口譯中可以爲口譯員省力，不假思索的找到近似的漢語對應四字片語，就可以大量使用。

to be able to deal with a series of difficult situations.

"Trumpified" is not an actual word in the dictionary, but rather is directed to the president of the United States. The author explains how the Trumpified party would try to eliminate democracy; this shows that he is also deeply against Trump's values. The idiom gives the readers a humorical representation of the author's beliefs toward Trump and the Republican Party.

A point of personal interest for me is the use of chiaroscuro in the book, and this passage is the most clear usage of it yet. The phrase "black and white" is used often in the context of truth and "grey" is a metaphor for ambiguity. The fact that the man's hair has no grey such that there was "no sort of regularity" between black and white suggests a lack of ambiguity and clarity of thought. It may be fruitful to investigate the contrast values throughout the text to see which narratives are "grey" and which are "black and white".

I have never used this idiom in writing before, but maybe I shall in the future.

I've seen this word before in a Disney TV show.

An ongoing and unchanging state of affairs despite difficulties or disturbances

Source: http://www.oxforddictionaries.com/definition/english/business-as-usual

Out at Elboes Ragged, Poor. 2. Wearing shabby or Ragged Clothing. Ayto, John.

"Oxford Dictionary of English Idioms." Google Books. Oxford University Press, n.d. Web. 02 Dec. 2015.