A SNOOT can be defined as somebody who knows what dysphemism means and doesn't mind letting you know it.

I submit that we SNOOTs are just about the last remaining kind of truly elitist nerd. There are, granted, plenty of nerd-species in today's America, and some of these are elitist within their own nerdy purview (e.g., the skinny, carbuncular, semi-autistic Computer Nerd moves instantly up on the totem pole of status when your screen freezes and now you need his help, and the bland condescension with which he performs the two occult keystrokes that unfreeze your screen is both elitist and situationally valid). But the SNOOT's purview is interhuman social life itself. You don't, after all (despite withering cultural pressure), have to use a computer, but you can't escape language: Language is everything and everywhere; it's what lets us have anything to do with one another; it's what separates us from the animals; Genesis 11:7-10 and so on. And we SNOOTS know when and how to hyphenate phrasal adjectives and to keep participles from dangling, and we know that we know, and we know how very few other Americans know this stuff or even care, and we judge them accordingly.

In ways that certain of us are uncomfortable about, SNOOTs' attitudes about contemporary usage resemble religious/political conservatives' attitudes about contemporary culture:(4) We combine a missionary zeal and a near-neural faith in our beliefs' importance with a curmudgeonly hell-in-a-handbasket despair at the way English is routinely manhandled and corrupted by supposedly educated people. The Evil is all around us: boners and clunkers and solecistic howlers and bursts of voguish linguistic methane that make any SNOOT's cheek twitch and forehead darken. A fellow SNOOT I know likes to say that listening to most people's English feels like watching somebody use a Stradivarius to pound nails. We(5) are the Few, the Proud, the Appalled at Everyone Else.

From an article with url posted in Loanwords from German