noun
rude, selfish middle-aged man
Colloquial blend of おじさん (middle-aged man) and バタリアン (from the film 'The Return of the Living Dead'), used to describe an obnoxious, self-centered older man.
See also: オバタリアン
電車の中で大声で電話しているオジタリアンがいた。
There was a rude middle-aged man talking loudly on the phone on the train.