Scans of The Wiggle Much, esoteric newspaper cartoon from 1910

During the same period, there was another comic strip, “Sherlocko the Monk”, that was so poorly written that the endings barely qualified as punchlines. But it was popular enough that people started taking a cue from the strip and putting an O at the end of their names. Sometimes, in the movies, you can still hear an old guy say, “hey, boy-o, c’mere.”

In Harpo Marx’s autobiography, “Harpo Speaks”, he recounts how during a card game backstage they each were given their nick names by the dealer, based on their on and off-stage personalities.

So what the hell is that thing, some sort of monkey-cat?