@izzythepush,
The iriony is that you somehow think your display of ignorance was pointing out a "grammatical inaccuracy." The expression "party hearty" is an old, well-established Americanism. No one asked for your permission to use it, if you were even born yet when it came into use. If you find it an insult to be described as an anal retentive grammarian, my advice is not to be one.
More name-calling, too. That's your style, though, which is why it's not a surprise.