ichidan verb, transitive verb
to raise forcefully; to set up emphatically
A more emphatic, colloquial version of 立てる, often implying a rough or forceful action. Used in casual speech.
彼は怒って机の上に本をおっ立てた。
He angrily slammed a book upright on the desk.
倒れた看板をおっ立てて直し
He forcefully set the fallen signboard back up.