The internet can’t get enough of the “Call of Diddy” meme—a viral trend that mashes up Call of Duty gameplay with the ongoing legal scandals surrounding music mogul Sean "Diddy" Combs.

Three years later, Sato learned from a friend that Kabosu’s photo had become a meme online. Kabosu had been nicknamed “Doge,” a play on the word “dog,” and clothes and purses using her ...