SNOB
"A person who imitates cultivates or slavishly admires social superiors and is condescending or overbearing to others"
"A person who believes himself or herself an expert or connoisseur in a given field and is condescending toward or disdainful of those who hold other opinions or have different tastes"... regarding a subject object noun pronoun preposition or derivatives thereof. To whit forsooth.
The part outside the quotes is all me
not the dictionary. As if you couldn't guess.
"First used as a nickname for a cobbler or cobbler's apprentice, hence a townsman, someone of low class or lacking good breeding; a commoner. Hence someone who imitates persons of higher rank."
In other words a phony.