Why was the name “The Straight Dope” choosen?
(I couldn’t find anything in the FAQ)
I could be wrong… but Straight Dope is a street term for telling the truth.
These might help:
The Ultimate SD Question
the straight dope
The Straight Dope
Origin of the phrase “straight dope”
What about the suffix often added after said slang, “From the horse’s mouth?” I guess it might have to do with the horse racing thing, come to think of it.