This is the official fictional? vlog account for Captain Brittany's landlady Maria Antimatter. "Anti-Maria" is Captain Brittany's landlady. Marrying a rich person who is good friends with Brit and Argus allows "Anti-Maria" a good life.
However, frustrations plague "Anti-Maria". Anyone who frustrates the easily frustrated "Anti-Maria" will be called "stupid".
The nickname "Anti-Maria" should not be assumed to be against anyone really named Maria. Maria is her name, but because she is in the Captain Brittany universe, things are a bit different.
Visit the official Maria Antimatter Facebook Page to learn more about Maria.