noun
rude, pushy middle-aged woman
Colloquial, often derogatory term for a middle-aged woman perceived as loud, selfish, or lacking manners. Coined as a blend of おばさん (auntie/middle-aged woman) and バタリアン (from the film 'The Return of the Living Dead').
電車でオバタリアンに席を取られた。
An obatarian snatched my seat on the train.
あのオバタリアンはいつも大声
That obatarian is always talking loudly.