Abbott: Strange as it may seem, they give ball players nowadays very peculiar names. Costello: Funny names? Abbott: Nicknames, nicknames. Now, on the St. Louis team we have Who’s on first, What’s on second, I Don’t Know is on third– Costello: That’s what I want to find out. I want you to tell me the names of the fellows on the St. Louis team. Abbott: I’m telling you. Who’s on first, What’s on second, I Don’t Know is on third– Costello: You know the fellows’ names? Abbott: Yes. Costello: Well, then who’s playing first? Abbott: Yes. Costello: I mean the fellow’s name on first base. Abbott: Who. Costello: The fellow playin’ first base. Abbott: Who.