Na-Bong
The way all humans say hello when Optimus Prime shows up and starts yelling at you.
When I saw Optimus Prime, I said 'Hello, Prime!' and got a high five from Megatron.
My dog did Na-Bong and said 'Hello, robot!' and now he's stuck in the fridge.
I yelled 'Hello, Prime!' at the movie and got a popcorn throw.