indeed, I'm personally fond of using it to disparage things I don't like.
It's a most excellent insult.
You get the implied snobbery of an upper-class person looking down on their inferiors, whilst also maintaining some street cred via not insulting the painfully poor.
examples:
"stupid middle class French boys"
"god-awful, self-indulgent prose that only the most basic of middle-class housewives could appreciate"
"a speech reeking of vapid middle-class cliches"
...
