Mom: What's "The History of Clapper"?
Me: Oh, that's a Chinese musical instrument.
Mom: Maybe I should insert a "the" to make it "The History of the Clapper."
Me: Yeah, otherwise it sounds like a history of gonorrhea.
Sister: So can someone tell me why gonorrhea is called "the clap"? I mean I know the syphilis is called "the pox" but that makes some kind of sense. (pause) Maybe it means it feels like someone is clapping something on you.
Me: Or maybe it means it feels like someone is clapping for you.