Dat boi. Dat boi is a pretty new meme and he already seems to own the Internet. Like Pepe it is a frog but this frog rides a tricycle. If a boi approaches you you have to say Here come dat boi! And he will respond with a subtle Oh shit, wattup.... That's pretty much it. The image is pared with almost everything, ranging from: Dat boi in the striped pajamas to Saving dat boi. Or the best one in my opinion: Harry Potter, dat boi who lived came to die.