They're not sitcom characters. It's a sort of internet meme style of speaking. I'm struggling to accurately describe it but basically over the last ten or so years certain names like Karen, Sharon and Barbara have been used to denote the kind of (mostly Republican) white woman who complains in supermarkets.
BBC means, unfortunately, Big Black Cock, and seems to be from my googling a type of race kink porn that is degrading.
Putting these two together I'm guessing the commenter (which seems to be a different one from the OP who anon failed?) was accusing the other coalie of being the sort of person who gets angry if anyone tries to take away their right to racism/guns/etc.
Re: Fandoms to Nom for 2020 Exchanges
They're not sitcom characters. It's a sort of internet meme style of speaking. I'm struggling to accurately describe it but basically over the last ten or so years certain names like Karen, Sharon and Barbara have been used to denote the kind of (mostly Republican) white woman who complains in supermarkets.
BBC means, unfortunately, Big Black Cock, and seems to be from my googling a type of race kink porn that is degrading.
Putting these two together I'm guessing the commenter (which seems to be a different one from the OP who anon failed?) was accusing the other coalie of being the sort of person who gets angry if anyone tries to take away their right to racism/guns/etc.
I hope that helps!