grammar ostrich
A grammar ostrich is one who doesn't know or care to understand how bad grammar affects the meaning of what they say, confuses others, and attacks anyone who points out or corrects the mistakes.
When corrected for saying "I want to insure you're happy." instead of "I want to ensure you're happy.", the grammar ostrich called the person trying to be helpful a grammar bitch. The grammar bitch tried to assure the ostrich that she was trying to be helpful, but this further ensured the ostrich's unwillingness to be helped. Fortunately, the bitch had insurance.