What did the orphan say to the other orphan?
"Get into the Batmobile, Robin."
What did the orphan say to the other orphan?
"Get into the Batmobile, Robin."
The joke plays on the idea of orphans pretending to be Batman and Robin, but it's funny because they are both orphans, so it makes no sense for one to call the other Robin. It's silly and unexpected, using the well known characters to create humor.