Someone who looks down upon pretty much anyone from any nation that did not take part in the colonial imperialism of the 1700-1800s. This essentially includes every large European nation, along with the United States. However this can include whatever nation is among the most prestigious, domestically peaceful, and powerful with a significant deal of international militaristic influence.
Grandpa: "Billy, have you heard tell of those savages in the middle east? Bloody awful lot, they are. If only they had submit to our colonial rule for a short while longer, we could have shown them the rule of law and perhaps some manners. They probably wouldn't be beheading good Briti..."
Someone who is so sarcastic they forget the original point they were trying to make. A Minister of Sneers will spout such acidic verbiage that they often burn themselves in the process. A person who holds this position enjoys the process of cuttingpeople (or things) down to a level above normal sarcasm. Often confused with an Office Monkey.
Our cubicle Minister of Sneers made so much fun of my new car I was embarrassed and returned it to the dealership.
-or-
The Minister of Sneers made fun of the Republican candidate, but then fell silent when the Democratic nominee took the same position.
A contemptuous, disgusted, and/or mocking facial expression, remark, or tone. Often depicted with a distorted raising of one's nostril and lip and a slight scowl or frown (or even smile).
That slightly hostile but partly smiling one-sided lip curl of disdain and disgust worn by each and every member of the Trump clan.
In analyzing that trump sneer, there is a dead fish look in the eyes concurrent with a type of shit-smelling expression which conveys a wish to be elsewhere.