The grammarsphere is the cyberworld of web pages, blogs, and Facebook groups where English-language nerds hang out and have
raging debates about things like "singular they", "verbing nouns", "the Oxford
comma" and "logical
punctuation".
"Do you want to do
something this weekend?"
"No, I can't. I'm going to
meet my grammarsphere friends this weekend."
"What? You are going to meet _who_?"
"Whom."
"The people that your meeting this weekend."
"I think you
mean 'The people whom you're meeting this weekend.'"
"I'm not meeting anybody this weekend."
"Exactly. Well, at least not my grammarsphere friends."