Myself has been wondering about this new usage, but myself didn’t take the time to check it out.
My neighbors had five boys and fianally, one girl.
The youngest boy, who got so little attention or encouragement grew fond of making his disappointment at being ignored known through a clever but innocent construction; he would squeeze between the clamoring brood and shout, “Him, here wants to say something,” while poking himself in the chest.
It was years before he quit answering to the nickname of Himhere.