This is a meme in my family as well. I always took it as a mockery of affectatious formal speech. I never thought of it as a jab at the nouveau riche let alone

This is a meme in my family as well. I always took it as a mockery of affectatious formal speech. I never thought of it as a jab at the nouveau riche let alone of the Victorian era, but it seems plausible.